Venusaur

Evolve {2}{g}{g}— You may place this card on top of target Ivysaur you control. You may use this ability at any time you could cast a creature spell.
Reach, Trample
{t}: Add {g} plus one {g} for each time this Pokémon has evolved.
Whenever this creature is tapped, each opponent loses 2 life, and you gain 2 life.