Deathgate Guardian

Flying
{3}{u}{u}{b}{b}, Pay 3 life: Deathgate Guardian
becomes a legendary creature with flying, trample,
and warp, with power/toughness 7/7. (Warp
means that if this creature would be destroyed or exiled, you may make it phase out until end of
turn. Sacrifice or exile a creature accordingly)
Deathgate Guardian gains '{u}{u}{b}{p/b},{t}: Destroy target creature with power more than 7 or less
than 5.