神器生物 ~多頭龍
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發條多頭龍進戰場時上面有四個+1/+1指示物。
每當發條多頭龍進行攻擊或阻擋時,從上面移去一個+1/+1指示物。若你如此作,則發條多頭龍對任意一個目標造成1點傷害。

:在發條多頭龍上放置一個+1/+1指示物。
If the chosen target is an illegal target by the time Clockwork Hydra's triggered ability tries to resolve, the ability doesn't resolve. You don't remove a counter from Clockwork Hydra.
If Clockwork Hydra leaves the battlefield while its trigger is on the stack, you can't remove a +1/+1 counter from it, so it won't deal damage.