Somnolent Temple

{2}{w}: Exile target creature until Somnolent
Temple leaves the battlefield.
{3}{r}: Return creature exiled with Somnolent
Temple to the battlefield under your control.
It gains haste. Exile it at the next end step.
{4}{g}: Search your library for a number of
lands equal to the number of creatures exiled
with Somnolent Temple. Then, exile Somnolent Temple.