Vizkopa Jailer

When Vizkopa Jailer enters the battlefield,
hinder 1. Repeat this process twice. (To hinder 1,
choose a creature with the greatest toughness from
among creatures you don't control and put a -1/-1
counter on it.)
When Vizkopa Jailer dies, remove a -1/-1 counter
from each creature your opponents control.
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"Just get the keys; that'll get us all out."