I mean, come on, I have to try….
Tetzimoc, Death Primordial
Legendary Creature – Elder Dinosaur
B, Reveal Tetzimoc, Death Primordial from your hand: Put a “Prey” counter on target creature. Only activate this ability during your turn.
When Tetzimoc, Death Primordial enters the battlefield, destroy all creatures with a “Prey” counter on them.
This is possibly so simple that it would border on boring, but what the heck, [card]Terminus[/card] isn’t as popular as it used to be due to the new tucking rules, maybe this could do something.