Colossal Titan

If there is a character with "Eren" in its card name and a character with "Zeke" in its card name on your field, reduce this card's required energy by Yellow x2 while in your hand.

This card cannot be played onto your energy line.

(If on the Front Line) The number of cards you can place onto your front line is reduced by one.

Damage (2) (Direct damage dealt by this character's attacks deals 2 damage.)

Trigger

Active Choose one character on your field and switch it to active. It gains 3000 BP until the end of the turn.