Cosmic Cube

Artifact

Ward

Whenever you attack, look at the top six cards of your library. You may cast a spell from among them with mana value less than or equal to the greatest power among attacking creatures you control without paying its mana cost. Put the rest on the bottom of your library in a random order.

Johan Grenier

Legalities

LEGAL Standard
LEGAL Pioneer
LEGAL Modern
LEGAL Legacy
LEGAL Vintage
LEGAL Commander
LEGAL Oathbreaker
NOT LEGAL Alchemy
LEGAL Historic
LEGAL Brawl
LEGAL Timeless
NOT LEGAL Pauper
NOT LEGAL Penny