Oliver, Landmage Protector

When Oliver, Landmage Protector enters the
battlefield, add one {u} and one{g} to your mana
pool until end of turn.
{u}{g}{1} Oliver, Landmage Protector gets +2/+2
until end of turn
{u}{g}{2} Create a 4/4 Venomite Plant token with Deathtouch