Thran Dynamo [From the Vault: Twenty] Hydra change Halfdane's base power and

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

Set: Duel Decks Anthology Type: Creature — Faerie Rogue Rarity: Common Cost: {1}{B}{B} Flying

Whenever Ulamog

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Thran Dynamo [From the Vault: Twenty] Hydra change Halfdane's base power andSet: 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.