Wexurioses Guildgate

When Wexurioses Guildgate enters the
battle field target creature with power 3 or
less is exiled.
{t}: Add {u} or {g} to your mana pool.
When Wexurioses Guildgate leaves the battlefeild
gain life equal to the creature you exiled
when Wexurioses Guildgate enters the battlefield.