Karrthus, Tyrant of Jund (Oversized) [Commander's Arsenal Oversized] Open the Helvault Whenever Forsaken Wastes becomes the

Whenever Forsaken Wastes becomes the target of a spell

you might as well trade it for something else

change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep

Set: Unstable Type: Artifact Creature — Cyborg Knight Rarity: Rare Cost: {1}{W} Whenever another artifact enters the battlefield under your control

Set: Judge Gift Cards 2006 Type: Creature — Human Wizard Rarity: Rare Cost: {W}{U} As Meddling Mage enters the battlefield

Karrthus, Tyrant of Jund (Oversized) [Commander's Arsenal Oversized] Open the Helvault Whenever Forsaken Wastes becomes theSet: Commander's Arsenal Oversized Type: Legendary Creature Dragon Rarity: Mythic Cost: {4}{B}{R}{G} Flying, haste When Karrthus, Tyrant of Jund enters the battlefield, gain control of all Dragons, then untap all Dragons. Other Dragon creatures you control have haste.