Refracting Polyhedron

Whenever you reveal a card from your hand or
from your library, if it is a non-land card, you
may cast a copy of it for its converted mana cost
until end of turn as if it had flash. If it is a land
card, you may create a token that is a copy of it.
This token enters the battlefield tapped.
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When an opportunity shows up, use it to create more.