The Garrison (R AOT01 279/297)

First Enhance [Commit Symbol]: This attack gains Stun: 1.

Garrison Form Sacrifice: Add 2 Wall counters to a card in your stage. (Only playable if your character has the Garrison trait.)

The Garrison, which reinforces the Walls, thereby protecting all of the towns . . .

Resources: Infinity
Asset
From the UniVersus card game set Attack on Titan: Battle for Humanity.