Funeral Longboat

{t}, Sacrifice Funeral Longboat: Exile all cards
from target player's graveyard.
When Funeral Longboat is put into a graveyard
from the battlefield, you may pay {4} If you do,
create a 4/4 white Angel creature token with
flying .
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"Cast onto the windless water, he drifted until the sea
turned to sky."
-Saga of the Lost King