Arrival of Bolas

Choose one:
{b/r}: Cast target spell three times and search
your library for Nicol Bolas, the defeated,
and summon it.
{u/b}: Create 0/0 Zombie Army which:
"At the end of turn put +1/+1 counter on
Zombie Army. Maximum of counters is 10. {t}: gain control of target creature until end of turn." You gain 3 life.