While Mirri is tapped, there's no restriction on how many creatures can attack planeswalkers you control or battles you protect
Its too slow for anything but Commander, but its excellent there as a source of many continuous effects: cast from exile, card draw, life loss, and so on
$24.99 Sol Ring (Deadpool - Pool Party Foil) Secret Lair $1.79 Songs of the Damned Ice Age $18.99 Deadpool, Trading Card (1753 - Foil) Secret Lair $0.79 Cursed Mirror Secrets of Strixhaven Commander Decks $1.29 Survivors' Encampment Hour of Devastation $4.99 Lightning Bolt (Deadpool - Pool Party Foil) Secret Lair $1.29 Thrill of Possibility (Deadpool - Pool Party Foil) Secret Lair $0.79 Twinflame Secrets of Strixhaven Commander Decks $0.99 Arcane Signet Secrets of Strixhaven Commander Decks $8.99 Sol Ring (Deadpool - Foil) Secret Lair $2.79 Deadly Dispute (Deadpool - Pool Party Foil) Secret Lair $3.49 Vandalblast (1757 - Foil) Secret Lair 0 results found
The kicker is the channel ability, which lets you discard it and bring back cards
P/T Number 11 Language English Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (10/4/2004) You may tap any untapped permanents you control with the appropriate creature type (including this creature) to pay the cost of the ability, including creatures that haven't been under your control continuously since the beginning of your most recent turn.
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