All of them. They are rare and all kill themselves. Why is pet battles the single most gimmicky thing in this game? Why do you do this Blizzard? Instead of making actually interesting and challenging mechanics for pet battles you just slap more hp, damage, and immunities on everything and call it a day.
Then this gimmicky crap.
Their abilities are randomized, so if you get one that has a move like that you can forfeit and start again until they don’t have that move selected (as long as you have an addon that shows you enemy moves). If one with Haunt comes up you can wait the four rounds if you like and they’ll resurrect.
Three of the seven Maw pets can suicide. This isn’t quite “all” of them.