Haster, Carrier of the Chosen

Event The Prophecy —
Put a legendary 1/1 white Avatar creature token
named Chosen One with indestructible and
"This creature can't attack or block. When this creature dies, destroy all creatures" onto the battlefield.
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When Haster, Carrier of the Chosen enters the battlefield, put a -1/-1 counter on a creature
token you control named Chosen One.