Sarkhan's Apotheosis

Flying
Sarkhan's Apotheosis's power and toughness are
each equal to your devotion to dragons. (Each {w}, {u}, {b}, {r} or {g} in the mana costs of dragon permanents you control counts toward your devotion
to dragons.)
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Sarkhan reveled in it. This was how Tarkir should be.
This was glorious.