Teysa, Envoy of Ghosts

Mana cost: {5}{W}{B}
Type: Legendary Creature — Human Advisor
Power / toughness: 4 / 4
Set: Commander 2015 #234 (rare)
Price: $1.79 USD

Vigilance, protection from creatures
Whenever a creature deals combat damage to you, destroy that creature. Create a 1/1 white and black Spirit creature token with flying.

Teysa, Envoy of Ghosts has 3 printings, first in Dragon's Maze (2013). EDHREC ranks it #6,710 among Commander cards. It appears most in Queen Marchesa decks (4,640 on EDHREC). 2 public decks on TCG run it. It has 4 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: legal
pioneer: legal
standard: not legal
brawl: not legal

Public decks that run Teysa, Envoy of Ghosts

Call the Spirits - Commander 2015, led by Daxos the Returned
Silverquill Statement - Commander 2021, led by Breena, the Demagogue

Commanders that run Teysa, Envoy of Ghosts most

Deck counts from EDHREC.

Often played with Teysa, Envoy of Ghosts

Cards that show up in the same decks on EDHREC.

Rulings

2013-04-15: Protection from creatures means that Teysa, Envoy of Ghosts can’t be the target of abilities of creatures or abilities of creature cards in other zones, such as bloodrush abilities. Teysa also can’t be blocked by creatures, and all damage that would be dealt to Teysa by creatures is prevented.
2013-04-15: Teysa’s last ability doesn’t target the creature. It will destroy a creature with hexproof or protection from white, for example.
2013-04-15: Teysa’s controller gets the Spirit creature token, not the controller of the creature that dealt combat damage.
2013-07-01: You get a Spirit creature token even if Teysa’s triggered ability doesn’t destroy the creature (perhaps because it regenerated or has indestructible).