Ranachos, the Vine Maker

Trample, shroud, rampage 2
At the beginning of each player's upkeep, that
player gain 1 life. If that player is you, gain 2 life instead.
{4}{g}, put a +1/+1 counter on target creature
{t}, Add {g}{u} to your mana pool.
"... which explains the size of this thing."