Items
Blast Umbrella
The field reference. Know what you’re working with.

Bonuses from your build can change these values.
bonuses & tradeoffs
+8% Explosion size
field use
With 5 Rotborn within 260 units: gain +0.1 Armor per point of Explosion size, up to 7.
how to find it
Clear wave 21 or later at Difficulty 3 or higher with 30% Explosion size or higher. Use build stats; temporary combat bonuses and conditional conversions do not count. Permanent unlock; find it in future shops and caches.
stacking
Up to 1 copies per expedition.
