A mainstay in everything from Aristocrats to Zombie Tribal, Lifegain to Extort, Zulaport Cutthroat not specifying they have to be your own creatures to trigger makes it a total nightmare for the table to deal with
But for some reason, Wizards decided to make the sticker mechanic legal in tournament formats
Featuring a selection of the most popular cards from the past
Since they are triggered abilities, chapter triggers do go onto the stack
They could have resolved, not resolved, been countered, or they could even still be on the stack
If Paralyze, Sleep, Poison, or, heaven forbid, Confusion ever become super popular and powerful, Chaos Tower will be there to keep them in check