Bhaal's mortal children carried within them a darkness that, left unchecked, would devour them all.

Call to the Void

Each player secretly chooses a creature they control and a creature they don't control. Then those choices are revealed. Destroy each creature chosen this way.

Commander Legends: Battle for Baldur's Gate

Battle for Baldur's Gate Promos

For each player to secretly choose the creatures, that player should write down their choices without showing them to anyone else. Each player then keeps their choices secret until all players simultaneously reveal their choices.

If a creature is chosen more than once, it is destroyed only once. For example, having a single shield counter on it would allow it to survive.