Unicode symbols (○ ◈ ◆ ✦ ★) were too similar to distinguish at a glance.
Now uses T1/T2/T3/T4★ prefixes with no prefix for base cards (T0).
Summary header reads "Base: 1 T1: 9 — 64 total" instead of cryptic symbols.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>