Northern Air Temple

Northern Air Temple enters the battlefield
tapped unless you control at least two creatures.
{t}: Add {w}, {u}, or {r} to your mana pool.
{2}, {t}: Target creature you control gains
flying until the end of turn.
"I realized it's like the hermit crab. Maybe you
weren't born here, but you found this empty shell
and made it your home, and now you protect
each other." - Aang