Thran Dynamo [From the Vault: Twenty] Hydra When Phyrexian Dreadnought enters the

When Phyrexian Dreadnought enters the battlefield

Whenever Ulamog

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: Arabian Nights Type: Artifact Rarity: Rare Cost: {2} Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield

Thran Dynamo [From the Vault: Twenty] Hydra When Phyrexian Dreadnought enters theSet: From the Vault: Twenty Type: Artifact Rarity: Mythic Cost: {4} {T}: Add {C}{C}{C}. Urza's metathran children were conceived, birthed, and nurtured by an integrated system of machines.