Yawgmoth Demon [Ninth Edition] Sliver Mutant put an oil counter on

put an oil counter on Mercurial Spelldancer

Set: Journey into Nyx Type: Instant Rarity: Uncommon Cost: {U} Strive — This spell costs {U} more to cast for each target beyond the first

After you roll a die

Set: Oversize Cards Rarity: Rare Skip your next turn: Draw four cards

Whenever Immersturm Predator becomes tapped

Yawgmoth Demon [Ninth Edition] Sliver Mutant put an oil counter onSet: Ninth Edition Type: Creature Demon Rarity: Rare Cost: {4}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach.) First strike (This creature deals combat damage before creatures without first strike.) At the beginning of your upkeep, you may sacrifice an artifact. If you don't, tap Yawgmoth Demon and it deals 2 damage to you.