Weiss Schwarz Rurouni Kenshin Disturbing Sight, Kaoru Kamiya RKN/S115-E017 Uncommon

[AUTO] When this card attacks, if your hand has 4 or more cards, this card gets +3000 power until end of turn.
[ACT] Brainstorm [(1) [REST] 2 of your characters] Flip over 4 cards from the top of your deck, and put them into your waiting room. For each climax card revealed among those cards, choose up to 1 character in your waiting room, and return it to your hand.