Wooded Foothills [Onslaught] Serpent put a +1/+1 counter on

put a +1/+1 counter on Khabál Ghoul for each creature that died this turn

their controllers sacrifice them

Set: From the Vault: Relics Type: Legendary Artifact Creature — Golem Rarity: Mythic Cost: {5} Whenever Karn

Set: Fifth Edition Type: Sorcery Rarity: Rare Cost: {R} Each player shuffles the cards from their hand into their library

relying on timing and precision rather than brute force

Wooded Foothills [Onslaught] Serpent put a +1/+1 counter onSet: Onslaught Type: Land Rarity: Rare {T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.