Creeping Insanity Sakura (FS/S77-E025 U) Fate/stay night [Heaven’s Feel] Vol.2 Card details

[AUTO] [Put 2 other "Servant" characters on your stage face up in any order underneath this card as markers] At the beginning of your opponent's encore step, you may pay the cost. If you do not, put this card into your waiting room.
[AUTO] At the beginning of your climax phase, if there are 7 or more markers underneath this card, put this card into your waiting room, choose up to 1 "Jealous, Sakura" in your waiting room, put it on the stage position that this card was on, and all of your opponent's characters get -3000 power until end of turn.
[ACT] [Put another "Indignant, Shinji" from your stage into your waiting room] Look at the top card of your deck, and put it face up underneath this card as a marker.