Onyx Beauty, Saber Alter (FS/S77-E044SP SP) [Fate/Stay Night [Heaven's Feel] Vol.2]

[CONT] If your hand has 5 or less cards, this card gets +1500 power. [AUTO] When this card attacks, reveal the top card of your deck. If that card is a "Master" or "Servant" or "Shadow" character, deal X damage to your opponent. X is equal to the level of that character. (Damage may be canceled. Return the revealed card to its original place)