Apathy

This spell can't be countered.

Defender, ward {4}

Whenever another creature attacks or blocks, or a player activates an ability of a permanent they control, tap that permanent. Then, if it hasn't had a stun counter put on it this turn, put two stun counters on it.

At the beginning of each end step, each opponent mills cards equal to the number of stun counters among permanents they control.