Commander creatures you own have "Whenever this creature becomes tapped, it and other creatures you control that share a creature type with it each get +2/+0 and gain undying until end of turn." (When a creature with undying 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.)
![Haunted One (Extended Art) [Commander Legends: Battle for Baldur's Gate] | RetroPlay Games](http://shop.retroplaygames.com/cdn/shop/products/2d399b5c-d478-5545-a929-52e8cb67ed4a_9dc1fdb6-93b3-46c9-96c5-03a5dcab707f.jpg?v=1709313062)
