CardName: Poison Cloud
Cost: 2BB
Type: Sorcery
Pow/Tgh: /
Rules Text: All creatures get -3/-3 until end of turn. Each player loses
3 life.
Flavour Text:
Set/Rarity: [Duel Deck] Orcs vs. Humans Rare
Poison Cloud
R
Sorcery
All creatures get -3/-3 until end of turn. Each player loses 3 life.
This and Shadow Spear both give -3/-3. I think at least one of the two should be able to clear out Great Sea Elemental.