Daln, Spellblade Mercenary

Prowess
Whenever you cast your third noncreature spell in
a turn, choose one -- Daln gains first strike until
end of turn; or Daln can't be blocked this turn.
Whenever you cast your fifth noncreature spell in
a turn, choose one -- Untap Daln, after this phase
there is an additional combat phase; or draw three
cards.
Whenever you cast your seventh noncreature spell
in a turn, choose one -- Destroy seven target permanents; or take an extra turn after this one.