Rainbow Dragon

When Rainbow Dragon enters the battlefield, you get {e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}{e}(fifty energy counters).
{e}:add {w}{u}{b}{r}{g}to your mana pool. Rainbow Dragon gets +1/+1