Gascoigne, Victim of the Hunt

Haste, Trample
Whenever Gascoigne, Victim of the Hunt attacks,
you may pay {r}{g} to have Gascoigne deal 1
damage to each creature defending player
controls. Gascoigne gets +1/+1 for each of those
creatures until end of turn.
Whenever a player's life total rises above half
their starting life total, transform Gascoigne,
Victim of the Hunt.