Great Genius, Leonardo da Vinci (FGO/S87-E081 RR) [Fate/Grand Order THE MOVIE Divine Realm of the Round Table: Camelot]

[AUTO] At the beginning of your climax phase, choose 1 of your characters, and that character gets +500 power until end of turn. [ACT] Brainstorm [(1) [REST] this card] Flip over 4 cards from the top of your deck, and put them into your waiting room. For each climax revealed among those cards, choose up to 1 character in your waiting room, and return it to your hand.