Saga, Gemini Saint

Saga, Gemini Saint can Cosmo Burst only once
Cosmo Burst{2}{b}{b}(When Saga, Gemini Saint
Cosmo Burst, put target creature with converted mana
cost equal or less than Saga, Gemini Saint from your graveyard onto the battlefield under your control)
Cosmo Burst{2}{w}{w}(When Saga, Gemini Saint
Cosmo Burst, exile target creature with converted
mana cost equal or less than Saga, Gemini Saint )