GREATER CAVE BEAR
Large beast, unaligned
AC 13 (natural armor)
HP 60 (7d10 + 21)
Spd 40 ft., swim 30 ft.
STR 22 DEX 10 CON 16 INT 2 WIS 13 CHA 7
Skills Perception +3
Senses darkvision 60 ft., passive Perception 13 (18 w/ scents)
Languages —
Challenge 3 (700 XP)
Keen Smell. The bear has advantage on Wisdom (Perception) checks that rely on smell.
ACTIONS
Multiattack. The bear makes two attacks: one with its bite and one with its claws.
Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target.
Hit: 10 (1d8 + 6) piercing dmg.
Claws. Melee Weapon Attack: +8 to hit, reach 5 ft., one target.
Hit: 13 (2d6 + 6) slashing dmg.
For the elementals, I'm thinking I'll just reskin them slightly:
*Air elemental = spirit bear
*Earth elemental = stone bear
*Fire elemental = burning bear
*Water elemental = water bear
With all but the fire elemental, I can just replace their slam attack with a claw attack that deals the same damage but is slashing instead of bludgeoning.