diff --git a/bot.py b/bot.py
index 1111b82..4e893dc 100644
--- a/bot.py
+++ b/bot.py
@@ -124,6 +124,7 @@ class SBABot(commands.Bot):
         from commands.spoiler import setup_spoiler
         from commands.injuries import setup_injuries
         from commands.gameplay import setup_gameplay
+        from commands.dev import setup_dev
 
         # Define command packages to load
         command_packages = [
@@ -143,6 +144,7 @@ class SBABot(commands.Bot):
             ("spoiler", setup_spoiler),
             ("injuries", setup_injuries),
             ("gameplay", setup_gameplay),
+            ("dev", setup_dev),  # Dev-only commands (admin restricted)
         ]
         
         total_successful = 0
diff --git a/commands/dev/__init__.py b/commands/dev/__init__.py
new file mode 100644
index 0000000..e7aadbb
--- /dev/null
+++ b/commands/dev/__init__.py
@@ -0,0 +1,47 @@
+"""
+Dev Commands Package
+
+Developer-only commands for testing. Hidden from regular users.
+"""
+import logging
+from discord.ext import commands
+
+from .loaded_dice import LoadedDiceCommands
+
+logger = logging.getLogger(__name__)
+
+
+async def setup_dev(bot: commands.Bot) -> tuple[int, int, list[str]]:
+    """
+    Setup all dev command modules.
+
+    Returns:
+        tuple: (successful_count, failed_count, failed_modules)
+    """
+    dev_cogs = [
+        ("LoadedDiceCommands", LoadedDiceCommands),
+    ]
+
+    successful = 0
+    failed = 0
+    failed_modules = []
+
+    for cog_name, cog_class in dev_cogs:
+        try:
+            await bot.add_cog(cog_class(bot))
+            logger.info(f"✅ Loaded {cog_name}")
+            successful += 1
+        except Exception as e:
+            logger.error(f"❌ Failed to load {cog_name}: {e}", exc_info=True)
+            failed += 1
+            failed_modules.append(cog_name)
+
+    if failed == 0:
+        logger.info(f"🎉 All {successful} dev command modules loaded successfully")
+    else:
+        logger.warning(f"⚠️  Dev commands loaded with issues: {successful} successful, {failed} failed")
+
+    return successful, failed, failed_modules
+
+
+__all__ = ['setup_dev', 'LoadedDiceCommands']
diff --git a/commands/dev/loaded_dice.py b/commands/dev/loaded_dice.py
new file mode 100644
index 0000000..658872f
--- /dev/null
+++ b/commands/dev/loaded_dice.py
@@ -0,0 +1,281 @@
+"""
+Loaded Dice - Developer Testing System
+
+HIDDEN DEV COMMAND for testing dice-dependent gameplay mechanics.
+Use `!loaded <d6> <2d6_total> <d20>` to set up a loaded roll for your next /ab.
+
+Example:
+    !loaded 3 7 15  → Next /ab will roll 3 for d6, 7 for 2d6, 15 for d20
+
+The loaded values are consumed after one use (one-shot).
+Only users with Administrator permission can use this command.
+"""
+import logging
+from dataclasses import dataclass
+from typing import Optional
+
+import discord
+from discord.ext import commands
+
+from utils.logging import get_contextual_logger
+from views.embeds import EmbedColors, EmbedTemplate
+
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class LoadedRoll:
+    """Represents a pending loaded roll for a user."""
+    d6_1: int           # First d6 (1-6)
+    d6_2_total: int     # 2d6 total (2-12)
+    d20: int            # d20 value (1-20)
+    user_id: int        # User who set this up
+
+
+# In-memory storage for pending loaded rolls
+# Maps user_id -> LoadedRoll
+_pending_loaded_rolls: dict[int, LoadedRoll] = {}
+
+
+def set_loaded_roll(user_id: int, d6_1: int, d6_2_total: int, d20: int) -> None:
+    """
+    Set up a loaded roll for a user's next /ab command.
+
+    Args:
+        user_id: Discord user ID
+        d6_1: Value for the first d6 (1-6)
+        d6_2_total: Total for the 2d6 roll (2-12)
+        d20: Value for the d20 roll (1-20)
+    """
+    _pending_loaded_rolls[user_id] = LoadedRoll(
+        d6_1=d6_1,
+        d6_2_total=d6_2_total,
+        d20=d20,
+        user_id=user_id
+    )
+    logger.info(f"Loaded roll set for user {user_id}: d6={d6_1}, 2d6={d6_2_total}, d20={d20}")
+
+
+def get_and_consume_loaded_roll(user_id: int) -> Optional[LoadedRoll]:
+    """
+    Get and consume a pending loaded roll for a user.
+
+    Returns the loaded roll if one exists, then removes it from storage.
+    Returns None if no loaded roll is pending.
+
+    Args:
+        user_id: Discord user ID
+
+    Returns:
+        LoadedRoll if pending, None otherwise
+    """
+    loaded = _pending_loaded_rolls.pop(user_id, None)
+    if loaded:
+        logger.info(f"Consumed loaded roll for user {user_id}: d6={loaded.d6_1}, 2d6={loaded.d6_2_total}, d20={loaded.d20}")
+    return loaded
+
+
+def has_pending_loaded_roll(user_id: int) -> bool:
+    """Check if a user has a pending loaded roll."""
+    return user_id in _pending_loaded_rolls
+
+
+def clear_loaded_roll(user_id: int) -> bool:
+    """
+    Clear a pending loaded roll without consuming it.
+
+    Returns True if a roll was cleared, False if none existed.
+    """
+    if user_id in _pending_loaded_rolls:
+        del _pending_loaded_rolls[user_id]
+        logger.info(f"Cleared loaded roll for user {user_id}")
+        return True
+    return False
+
+
+class LoadedDiceCommands(commands.Cog):
+    """
+    Developer commands for loaded dice testing.
+
+    These are prefix commands (!) to avoid cluttering the slash command list.
+    Only administrators can use these commands.
+    """
+
+    def __init__(self, bot: commands.Bot):
+        self.bot = bot
+        self.logger = get_contextual_logger(f'{__name__}.LoadedDiceCommands')
+
+    async def cog_check(self, ctx: commands.Context) -> bool:
+        """Only allow administrators to use dev commands."""
+        if not ctx.guild:
+            return False
+
+        if not isinstance(ctx.author, discord.Member):
+            return False
+
+        if ctx.author.id != 258104532423147520:
+            # Silently fail - don't reveal command exists to non-admins
+            return False
+
+        return True
+
+    @commands.command(name="loaded", aliases=["load", "ld"])
+    async def set_loaded_dice(
+        self,
+        ctx: commands.Context,
+        d6_1: int,
+        d6_2_total: int,
+        d20: int,
+        target_user_id: int | None = None
+    ):
+        """
+        Set up a loaded roll for the next /ab command.
+
+        Usage:
+            !loaded <d6> <2d6_total> <d20> [user_id]
+
+        Examples:
+            !loaded 3 7 15              → Load for yourself
+            !loaded 5 12 1 123456789    → Load for user ID 123456789
+
+        The loaded values are consumed after one /ab use.
+        """
+        # Determine target user (default to command author)
+        target_id = target_user_id or ctx.author.id
+
+        self.logger.info(
+            f"Loaded dice command from {ctx.author}: d6={d6_1}, 2d6={d6_2_total}, d20={d20}, target_id={target_id}"
+        )
+
+        # Validate d6_1 (1-6)
+        if d6_1 < 1 or d6_1 > 6:
+            await ctx.send("❌ First d6 must be 1-6", delete_after=10)
+            return
+
+        # Validate 2d6 total (2-12)
+        if d6_2_total < 2 or d6_2_total > 12:
+            await ctx.send("❌ 2d6 total must be 2-12", delete_after=10)
+            return
+
+        # Validate d20 (1-20)
+        if d20 < 1 or d20 > 20:
+            await ctx.send("❌ d20 must be 1-20", delete_after=10)
+            return
+
+        # Store the loaded roll for target user
+        set_loaded_roll(target_id, d6_1, d6_2_total, d20)
+
+        # Create confirmation embed
+        card_type = "Batter" if d6_1 <= 3 else "Pitcher"
+
+        # Build description based on target
+        if target_id == ctx.author.id:
+            description = "Your next `/ab` roll will use these values:"
+        else:
+            description = f"Next `/ab` roll for <@{target_id}> will use these values:"
+
+        embed = EmbedTemplate.create_base_embed(
+            title="🎲 Loaded Dice Set",
+            description=description,
+            color=EmbedColors.WARNING
+        )
+
+        embed.add_field(
+            name="Loaded Values",
+            value=f"```\nd6:  {d6_1} ({card_type} card)\n2d6: {d6_2_total}\nd20: {d20}\n```",
+            inline=False
+        )
+
+        # Special indicators
+        specials = []
+        if d20 == 1:
+            specials.append("⚠️ Wild Pitch check")
+        elif d20 == 2:
+            specials.append("⚠️ Passed Ball check")
+
+        if d6_1 == 6 and d6_2_total in [7, 8, 9, 10, 11, 12]:
+            injury_rating = 13 - d6_2_total
+            specials.append(f"🩹 Injury check (rating {injury_rating})")
+
+        if specials:
+            embed.add_field(
+                name="Special Plays",
+                value='\n'.join(specials),
+                inline=False
+            )
+
+        # Footer with target info
+        if target_id == ctx.author.id:
+            footer = "🔧 Dev Mode • Values consumed on next /ab • Use !unload to cancel"
+        else:
+            footer = f"🔧 Dev Mode • Target: {target_id} • Use !unload {target_id} to cancel"
+
+        embed.set_footer(text=footer)
+
+        await ctx.send(embed=embed, delete_after=30)
+
+        # Delete the command message to keep it hidden
+        try:
+            await ctx.message.delete()
+        except discord.Forbidden:
+            pass  # Can't delete in DMs or without permissions
+
+    @commands.command(name="unload", aliases=["unld", "clearload"])
+    async def clear_loaded_dice(self, ctx: commands.Context, target_user_id: int | None = None):
+        """Clear any pending loaded dice without using them."""
+        target_id = target_user_id or ctx.author.id
+        self.logger.info(f"Unload command from {ctx.author}, target_id={target_id}")
+
+        if clear_loaded_roll(target_id):
+            if target_id == ctx.author.id:
+                await ctx.send("✅ Loaded dice cleared", delete_after=10)
+            else:
+                await ctx.send(f"✅ Loaded dice cleared for <@{target_id}>", delete_after=10)
+        else:
+            await ctx.send("ℹ️ No loaded dice pending", delete_after=10)
+
+        # Delete the command message
+        try:
+            await ctx.message.delete()
+        except discord.Forbidden:
+            pass
+
+    @commands.command(name="checkload", aliases=["chkld"])
+    async def check_loaded_dice(self, ctx: commands.Context, target_user_id: int | None = None):
+        """Check if loaded dice are pending for a user."""
+        target_id = target_user_id or ctx.author.id
+        self.logger.info(f"Check load command from {ctx.author}, target_id={target_id}")
+
+        if target_id in _pending_loaded_rolls:
+            loaded = _pending_loaded_rolls[target_id]
+            card_type = "Batter" if loaded.d6_1 <= 3 else "Pitcher"
+            target_text = "" if target_id == ctx.author.id else f" for <@{target_id}>"
+            await ctx.send(
+                f"🎲 Loaded{target_text}: d6={loaded.d6_1} ({card_type}), 2d6={loaded.d6_2_total}, d20={loaded.d20}",
+                delete_after=15
+            )
+        else:
+            await ctx.send("ℹ️ No loaded dice pending", delete_after=10)
+
+        # Delete the command message
+        try:
+            await ctx.message.delete()
+        except discord.Forbidden:
+            pass
+
+
+async def setup(bot: commands.Bot):
+    """Load the loaded dice commands cog."""
+    await bot.add_cog(LoadedDiceCommands(bot))
+
+
+# Export for use by dice commands
+__all__ = [
+    'LoadedDiceCommands',
+    'LoadedRoll',
+    'set_loaded_roll',
+    'get_and_consume_loaded_roll',
+    'has_pending_loaded_roll',
+    'clear_loaded_roll',
+]
diff --git a/commands/dice/rolls.py b/commands/dice/rolls.py
index a4d8752..0935005 100644
--- a/commands/dice/rolls.py
+++ b/commands/dice/rolls.py
@@ -18,6 +18,7 @@ from utils.team_utils import get_user_major_league_team
 from utils.text_utils import split_text_for_fields
 from utils.dice_utils import DiceRoll, parse_and_roll_multiple_dice, parse_and_roll_single_dice
 from views.embeds import EmbedColors, EmbedTemplate
+from commands.dev.loaded_dice import get_and_consume_loaded_roll
 from .chart_data import (
     INFIELD_X_CHART,
     OUTFIELD_X_CHART,
@@ -130,9 +131,26 @@ class DiceRollCommands(commands.Cog):
         await interaction.response.defer()
         embed_color = await self._get_channel_embed_color(interaction)
 
-        # Use the standard baseball dice combination
-        dice_notation = "1d6;2d6;1d20"
-        roll_results = parse_and_roll_multiple_dice(dice_notation)
+        # Check for loaded dice (dev testing)
+        loaded = get_and_consume_loaded_roll(interaction.user.id)
+        if loaded:
+            self.logger.info(
+                f"Using loaded dice for {interaction.user}: d6={loaded.d6_1}, 2d6={loaded.d6_2_total}, d20={loaded.d20}"
+            )
+            # Create DiceRoll objects from loaded values
+            # For 2d6, we split the total into two dice (arbitrary split that sums correctly)
+            d6_2a = min(loaded.d6_2_total - 1, 6)  # First die (max 6)
+            d6_2b = loaded.d6_2_total - d6_2a      # Second die gets remainder
+            roll_results = [
+                DiceRoll("1d6", 1, 6, [loaded.d6_1], loaded.d6_1),
+                DiceRoll("2d6", 2, 6, [d6_2a, d6_2b], loaded.d6_2_total),
+                DiceRoll("1d20", 1, 20, [loaded.d20], loaded.d20),
+            ]
+            dice_notation = "1d6;2d6;1d20"
+        else:
+            # Use the standard baseball dice combination
+            dice_notation = "1d6;2d6;1d20"
+            roll_results = parse_and_roll_multiple_dice(dice_notation)
 
         injury_risk = (roll_results[0].total == 6) and (roll_results[1].total in [7, 8, 9, 10, 11, 12])
         d6_total = roll_results[1].total