Gnar, The Missing Link

Haste
{x}{r}{g}Boomerang: Gnar throws his boomerang
to target creature dealing X damage
{4}{g}{r/g}Hop: Destroy target artifact and gain
+1/+1 counter on target creature
Transform if player has taken/dealt more
than 5 damage
{3}{g}Headpat: All creatures gain +1/+1