Snapcaster Mage (Topper) [Ultimate Masters Box Topper] Phyrexian Golem defending player exiles the top

defending player exiles the top twenty cards of their library

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It's still a land

you may pay X life

Activated abilities of creatures your opponents control can't be activated

Snapcaster Mage (Topper) [Ultimate Masters Box Topper] Phyrexian Golem defending player exiles the topSet: Ultimate Masters Box Topper Type: Creature Human Wizard Rarity: Mythic Cost: {1}{U} Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)