Sliver Hivelord [Magic 2015] Dinosaur Hippo Threshold — Nim Mongoose gets

Threshold — Nim Mongoose gets +1/+0 for each artifact you control as long as seven or more cards are in your graveyard

Set: Core Set 2021 Type: Legendary Planeswalker — Ugin Rarity: Mythic Cost: {8} +2: Ugin

it has all activated abilities of all creature cards in all graveyards

When that player draws Letter Bomb

return Rancor to its owner's hand

Sliver Hivelord [Magic 2015] Dinosaur Hippo Threshold — Nim Mongoose getsSet: 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