Sliver Queen, Brood Mother [Vanguard Series] Friday Night Magic 2006 Then that player or that

Then that player or that permanent's controller may pay {R}{R}

If you don't

Set: Tenth Edition Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

As long as Gaea's Liege is attacking

Sliver Queen, Brood Mother [Vanguard Series] Friday Night Magic 2006 Then that player or thatSet: Vanguard Series Type: Vanguard Rarity: Rare {3}: Create a 1 1 colorless Sliver creature token. Though long held captive beneath Volrath's stronghold, the sliver queen is actually freer than most of Rath's denizens. Her maternal instincts always take precedenceeven when they conflict with the evincar's agendaand through her numerous litters, she ranges across all of Rath.