New
- 8 new Bastion upgrades: Sand Slow, Status Shrine, Acid/Alkali Sprinkler, Phase Grass, War Banner, Magnet, Auto Hook, Status Ball Toss
- New "Quicksand" disaster, mirroring "Wind"
- X/Y gamepad shortcuts on Pause / Round-End panels
Optimization
- Steeper surcharge & reroll cost ramp per round
- Per-enemy XP 22 → 34
- Bastion R6–R15 late waves rebalanced
- Pooled floating symbols eliminate late-game hitches
Fix
- Group center now excludes respawning fallen units