Dreadful Rain, Touka (FT/S120-E065 U) [FAIRY TAIL 100 YEARS QUEST]

[AUTO] When this card attacks, this card gets +X power until end of turn. X is equal to the number of characters your opponent has ×2000. [AUTO] Change [Put this card into your waiting room] At the beginning of your climax phase, you may pay the cost. If you do, choose 1 "Changing Appearance, White Mage" in your waiting room, and put it in the stage position that this card was in. (This ability does not activate if this card is not on the stage at the beginning of the climax phase)