Moosha, Apex of Might

Haste, Trample, Double-Strike, Nasty (This creature deals Damage in the form of bleed counters)
Mutate {7}{w}{r}{g}
When this creature mutates, gets +5/+5 and can deal combat damage as though it were not blocked until end of turn
Remove 4 counters from target opponent that a source you controlled put on them: Exile the top card of your library. Until the end of your next turn, you may cast it. If this is the third time this ability has resolved this turn, instead you may cast spells from Exile this