Darksteel Hydra
Artifact Creature — Phyrexian Hydra
Oracle Text
Indestructible Darksteel Hydra enters with X oil counters on it. Darksteel Hydra's power and toughness are each equal to twice the number of oil counters on it. When Darksteel Hydra enters, conjure a card named Darksteel Ingot and a card named Darksteel Plate into your hand.Rules for this card
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A keyword ability that precludes a permanent from being destroyed. See rule 702.12.