Another monster and I have no idea where this idea came from. Maybe it was just combining two animals and my addled brain said, “Hey, that might be kind of cool!” No pun intended. I know its not very fancy or a “trick” monster but sometimes simple and just a little off beat is fun.
Saber Tooth Polar Bear
AC 6 
Attacks 2 claws (1d6+1) 1 bite (2d6+1)
Special Viscous Bite When a saber tooth polar bear hits with its bite attack, the target must make a Saving Throw or suffer an additional 1d8 damage.