Numian's Warding Swords

Whenever an opponent mills a card, roll a six sided die. On
a roll of 4-6, they mill another card.

At the start of your upkeep, choose one, then mill a card:
•Until end of turn, when target opponent mills a card, they lose 1 life.

•Until end of turn, when a creature you control attacks, target player mills a card.

•Until your next upkeep, when you take damage, you may reduce that damage by 1. If you do, mill a card.