Liam Inevitable

Trample, Deathtouch, Indestructible

{u}{b}{r}- Impending 7 (Cast this creature as an enchantment with 6 time counters on it, take a time counter off when it is your upkeep, when there are no more time counters, it becomes a creature)

As an enchantment, at your combat step target creature gains menace until end of turn

When Liam turns into or enters as a creature, destroy all other creatures