From the Super Mario Wiki
Mirage attack! is Yaridovich's special move in Super Mario RPG: Legend of the Seven Stars. The technique allows Yaridovich to split out a temporary duplicate of himself. The Machine Made Yaridoviches of Smithy's Factory use a similar move named Multiplier!, although the Yaridovich turns into four Machine Made Drill Bits instead of a pair of Yaridovichs.
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