Is this broken?

[Volradon]

Orb of Power (R)
2
Artifact
2: Flip a coin. Target opponent calls in air. The looser of the flip looses the game unless he or she removes from the game a permanent in play that he or she controls.

 

[Phyrexian Pie-Eater]

Raise the CC to 4 and the activation cost to 6. Other people might say its still too cheap