Xerex Squire [Unknown Event] Grass [x2] Cannot attack the turn it

Cannot attack the turn it is Special Summoned

If Summoned this way

[-8]: Exile the top eight cards of your library

Set: Black & White: Dark Explorers Type: Darkness Rarity: Promo Retreat cost: Colorless

or if your opponent activates a monster effect (except during the Damage Step): You can target 1 face-up card your opponent controls

Xerex Squire [Unknown Event] Grass [x2] Cannot attack the turn itSet: Unknown Event Type: Creature Human Knight Rarity: Common Whenever Xerex Squire attacks, calculate the hypotenuse of another creature you control. Xerex Squire's power and toughness become equal to that number, rounded up, until end of turn. (To calculate a hypotenuse, let A be that creature's power and B be that creature's toughness. Then C=v(a+b). C is the hypotenuse. Or just look up a calculator online.)