Red Slaad
Chaotic, violent, and way too interested in your chest cavity.
The Red Slaad is a hulking frog-like horror from the plane of pure chaos. It doesn't want your gold. It doesn't want a conversation. It wants to implant you with its eggs so more Slaadi can claw their way out of your corpse later. That's the whole deal. They're fast, they're mean, and they travel in packs. A party favorite for DMs who want to keep their players paranoid about every scratch they take in combat.