Special Existence Shirou (FS/S77-E007 U) Fate/stay night [Heaven’s Feel] Vol.2 Card details

[AUTO] When this card is placed on the stage from your hand, put the top 2 cards of your deck into your waiting room, and this card gets +X power until end of turn. X is equal to the number of "Master" or "Servant" characters among those cards ×1000.
[AUTO] When this card is placed on the stage from your hand, you may choose 1 of your "Continuing Rainfall, Sakura" and 1 "Duplicate Key to the Emiya Household" in your waiting room, and put that card face up underneath that character as a marker. If you do, this card gets +1 soul until end of turn.