Kiki-Jiki in exile (exiled by Agatha's Soul Cauldron).
Agatha's Soul Cauldron and Good-Fortune Unicorn on the battlefield.
You control at least one nonlegendary creature.
You control at least one creature that has at least one +1/+1 counter on it and that does not have summoning sickness.
Steps
Activate a creature you control with a +1/+1 counter on it using Kiki-Jiki's ability by tapping it, creating a token copy of any nonlegendary creature you control with haste.
When the creature token enters the battlefield, Good-Fortune Unicorn triggers, putting a +1/+1 counter on it.