Imperious Mindbreaker

Creature — Human Wizard

Soulbond (You may pair this with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as this is paired with another creature, they both have "Whenever this attacks, each opponent mills cards equal to its toughness." (They put the cards from the top of their library into their graveyard.)

Legality

Format	Legality
1v1 Commander	Legal
Archenemy	Legal
Block Constructed	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Highlander	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Oathbreaker	Legal
Planar Constructed	Legal
Planechase	Legal
Quest Magic	Legal
Tiny Leaders	Legal
Vanguard	Legal
Vintage	Legal