Assassin

Whenever this creature deals combat damage to a player, that player loses the game.

Assassin's Creed Tokens

Menace (This creature can't be blocked except by two or more creatures.)

Outlaws of Thunder Junction Commander Tokens

Commander Masters Tokens

March of the Machine Commander Tokens

Commander 2019 Tokens

Vraska the Unseen

+1: Until your next turn, whenever a creature deals combat damage to Vraska the Unseen, destroy that creature.
−3: Destroy target nonland permanent.
−7: Create three 1/1 black Assassin creature tokens with "Whenever this creature deals combat damage to a player, that player loses the game."

[+1]: Until your next turn, whenever a creature deals combat damage to Vraska, destroy that creature.
[−3]: Destroy target nonland permanent.
[−7]: Create three 1/1 black Assassin creature tokens with "Whenever this token deals combat damage to a player, that player loses the game."