Bartholomew Kuma – Legacy of the Master (OP12)

[On Play] You may trash 1 card from your hand: Add up to 1 card from the top of your deck to the top of your Life cards. Then, this Character gains +2 cost until the end of your opponent’s next End Phase.
[Opponent’s Turn] [On K.O.] Add up to 1 card from the top of your deck to the top of your Life cards.