At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell.
It chews open Mirrodin's husk and feeds on the outpouring of energy.
Near Mint - £0.40
Lightly Played - £0.40
Moderately Played - £0.30
Heavily Played - £0.20
Damaged - £0.20
Near Mint Non English - £0.40
Lightly Played Non English - £0.40
Moderately Played Non English - £0.30
Heavily Played Non English - £0.20
Damaged Non English - £0.20