Cliffside Laboratory

Cliffside Laboratory enters the battlefield tapped
{t}, Pay 1 life: Add {u} or {r} to your mana pool
{1}{u}{r},{t}: Return Cliffside Laboratory to its owner's hand, discard 2 cards at random, then draw 3 cards.
"Sometimes, to take one step forward you have to take two steps back. But i'd prefer just to walk."
- Not Gelectrode, probably some other smart mage