If Wrathful Raptors and one or more other Dinosaurs you control are dealt damage at the same time, Wrathful Raptors's ability triggers for itself and for each of those Dinosaurs, regardless of whether or not Wrathful Raptors was dealt lethal damage.
10-11-2023
wotc
If lethal damage is dealt to a Dinosaur you control while you control Wrathful Raptors, Wrathful Raptors's last ability still triggers.
10-11-2023
wotc
"Any target that isn't a Dinosaur" means any non-Dinosaur creature, any planeswalker or battle, or any player (no matter how old they are).
10-11-2023
wotc
If multiple sources deal damage to a Dinosaur you control while you control Wrathful Raptors, most likely because multiple creatures blocked that Dinosaur, Wrathful Raptors's last ability triggers only once.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.