Floor 12 · Grindstone
First clear: 1 Bulwark shard
← All tower floors- Guardian
- Grindstone
- Archetype
- Trickster
- Difficulty band
- 3
- First-clear reward
- First clear: 1 Bulwark shard
- Tutorial shard progress
- 2/5
Winning-clear star times
- 5 stars
- At or below 13s
- 4 stars
- At or below 21s
- 3 stars
- At or below 29s
- 2 stars
- At or below 40s
A slower winning clear earns 1 star. Time is simulated fight time. Rewards are once per floor, and stars do not gate progression.