Convergence of Eternity

If Convergence of Eternity is in your opening
hand, you may begin with it on the battlefield.
All non-token creatures that don't have
Impersonate gain Impersonate - {2}{w/b}
(Impersonate: If a creature with Impersonate is destroyed, create a 1/1 colorless newborn token
with its abilities except Impersonate.)