Planar Gate

{t}: Add {c}
| {x},{2},{t}: Exert Planar Gate. You may
| cast any spell with converted mana cost {x}
| from your library without paying it's mana cost.
(An exerted permanent won't untap during your
next untap step.)
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"Infinite power lies beyond the boundaries of
our world" - Kalynn Windspeaker