Daddy Long Legs

{1}{t}: Add 1 Rot counter to target creature or
artifact. (If a creature or artifact has three or more
Rot counters, they are destroyed at the end of the next
turn after they gained their third Rot counter. None of
this applies if the card is an Ooze. Instead, during
your upkeep phase, you may switch out two Rot
counters for a +1/+1 counter.)
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"Oh no."
—Looks to the Moon