Kavre Mantlebreak

Land creatures you control have haste and
trample.
Whenever a land creature you control deals
combat damage to a player, put a +1/+1 counter
on it and Kavre deals 2 damage to any target.
{r}{g}, Discard a card with mana value X: Target
land you control becomes an X/X Elemental
creature until end of turn. It's still a land.