Long Way Down

Accusation - This spell costs {3} less to cast if the creature it targets has been targeted this turn.
Tap target creature and put three flood counters
on it. It gains "This creature can't untap." and
"At the beginning of your your upkeep, remove a
flood counter from this creature. When the last is removed this way, destroy it."
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"You drown not by falling into a river, but by staying submerged in it." -Paulo Coelho