Dissolving Shield is a C Mechanologist Action - Item card from Flesh and Blood (Armory Deck - Dash I/O, AIO).
C
Armory Deck - Dash I/O (AIO)
Card Text
Crank
This enters the arena with 3 steam counters. At the start of your turn, destroy this unless you remove a steam counter from it.
Instant - Remove a steam counter from this: Prevent the next 1 damage that would be dealt to you this turn. If this has no steam counters, destroy it.