Ravenous Rats [Portal Second Age]Set: Portal Second Age Type: Creature Rat Rarity: Common Cost: {1}{B} When Ravenous Rats enters the battlefield, target opponent discards a card.

Open hostilities are strictly forbidden at the Inventors' Fair

Set: Commander Anthology Volume II Type: Artifact Rarity: Common Cost: {2} When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield

Set: EX: Dragon Type: Stadium Rarity: Uncommon

For all its traps and defenses

quite pretty

Set: Expedition: Base Set Type: Water Rarity: Common Retreat cost: Colorless

you choose from among the permanents that player controls an artifact

Set: Morningtide Type: Creature — Elemental Rarity: Rare Cost: {6}{U} Flying

and standard—has fallen

{2}{C}: Exile another target creature

Create X 1/1 white Soldier creature tokens with lifelink

Set: HeartGold & SoulSilver: Call of Legends Type: Metal Rarity: Ultra Rare Retreat cost: Colorless