Pitiless Pontiff [Ravnica Allegiance] Tribal Artifact Sacrifice two Goblins: Create three

Sacrifice two Goblins: Create three 1/1 red Goblin creature tokens

This one seemed especially promising

Set: Shadowmoor Type: Creature — Spirit Avatar Rarity: Rare Cost: {U/B}{U/B}{U/B}{U/B}{U/B} Ghastlord of Fugue can't be blocked

Many elves incorporate the beauty of nature into their inventions

Set: Battle for Zendikar Type: Enchantment Rarity: Rare Cost: {4}{U} Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it

Pitiless Pontiff [Ravnica Allegiance] Tribal Artifact Sacrifice two Goblins: Create threeSet: Ravnica Allegiance Type: Creature Vampire Cleric Rarity: Uncommon Cost: {W}{B} {1}, Sacrifice another creature: Pitiless Pontiff gains deathtouch and indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) "Pay in gold. Pay in blood. Pay with the servitude of your spirit kin. But pay you must."