"Great Holy Grail War" Saber of Red (APO/S53-TE08S SR) [Fate/Apocrypha]

[AUTO] When this card is placed on the stage from your hand, look at up to X cards from the top of your deck, choose up to one card from among them, put it into your hand, and put the rest into your waiting room. X is equal to the number of "Master" or "Servant" characters you have. [AUTO] When this card attacks, this card gets +X power until end of turn. X is equal to 1000 multiplied by the number of other "Master" or "Servant" characters you have.