Sliver Hivelord [Magic 2015] Fungus sacrifice Hecatomb unless you sacrifice

sacrifice Hecatomb unless you sacrifice four creatures

Set: Ravnica: City of Guilds Type: Creature — Angel Rarity: Rare Cost: {3}{R}{W}{W} Flying

Set: Iconic Masters Type: Creature — Insect Shaman Rarity: Common Cost: {2}{G} When Nantuko Shaman enters the battlefield

Set: Commander 2013 Type: Land Rarity: Uncommon Kazandu Refuge enters the battlefield tapped

Sliver Hivelord [Magic 2015] Fungus sacrifice Hecatomb unless you sacrificeSet: Magic 2015 Type: Legendary Creature Sliver Rarity: Mythic Cost: {W}{U}{B}{R}{G} Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.) "This is the source, the line unbroken since the calamity that brought such monsters to our shores." Hastric, Thunian scout