Rivendell, House of Elrond

Rivendell, House of Elrond enters the
battlefield tapped unless you control an Elf.
{t}Add {g} or {w} to your mana pool. If you
control an Elf, you gain 1 life.
"The time of the Elves is over- my people are
leaving these shores. Who will you look to
when we've gone?" ~ Elrond Half-elven