At the beginning of each opponent's upkeep, they lose 1 life and you put a -1/-1 counter on up to one target creature they control. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
![Persistent Constrictor [Duskmourn: House of Horror Commander]](http://tothetablebgc.myshopify.com/cdn/shop/files/0a25d478-84fd-4e4b-abb7-f5f6becf6eb0.png?v=1776401943&width=1445)
