Urza, Repenting King

If a creature you control would die, exile it
instead, then you gain 1 life, draw a card, and
create a treasure token.
If a creature entering the battlefield would
cause a ability you control to trigger, copy
that ability, you may choose new targets for
the copy if possible.
(Urza counts as a Human Warrior Wizard Artificer)
Long after the gatewatch, a resurrected Urza had to rebuild dominaria.