Drenna, The Watcher

First strike
At the beginning of your upkeep, you may choose a nonland permanent you don’t control. That permanent gets a watched counter for as long as Drenna remains on the battlefield. Whenever a permanent with a watched counter on it becomes tapped, deals damage, or activates an ability, Drenna deals 2 damage to its controller. Whenever a watched permanent is destroyed, Drenna deals 3 damage to each opponent.