"Hidden Truth" Ymir (AOT/S50-E064b U) [Attack on Titan Vol. 2]

[CONT] During your turn, if the number of other characters you have with "Christa" in its card name is two or more, this card gets +4000 power. [AUTO] Change [(1) Put this card into your clock] At the beginning of your encore step, if this card is [REST], you may pay the cost. If you do, choose a card named "Ymir Titan" in your waiting room, and put it on the stage position that this card was on.