Pre-bake backbone card art (instant, no shimmer) + stop warming face-down enemy hand

Speed up boss deck (parallel picks, ~22s->7.5s) and forge it from run start; deck-aware README

Polish demo: boss reveal screen, portraits, varied packs, paced draft, title copy

Trim prefetch to 1 pack, log model-pack failures, JSON-constrained cards, rotate fallback names

Speed: reveal first pack immediately, defer boss deck, more Modal containers

finished base

Build Tabras card duel prototype