Crystal Cat

Keen Smell. The cat has an advantage on Wisdom (Perception) checks that rely on smell.

Size shift. For one action round, this creature can shift size from Tiny to Large.

Large size. When this creature is in its large state, its attacks deal an additional +3 dmg on hit, but DEX -1. Its STR is increased by +3

Small size. It's DEX +3, but it's STR -1.

Elemental adaptation. When hit by an element, gain immunity to the said element after taking damage from the said element and become engulfed in said element, including poisons.

Environmental adaption. When in a water environment, it will grow gills and become more water-based. Effectively built to adapt and survive new environments.

Poison adapt. When adapted in poison form +3 CON and -1 WIS. Adapt bonus does not change when changing to a different adapt form during combat.

Earth adapt. When adapted in earth form +3 DEX and -1 INT. Adapt bonus does not change when changing to a different adapt form during combat.

Fire adapt. When adapted in fire form +3 STR and -1 CON. Adapt bonus does not change when changing to a different adapt form during combat.

Magic adapt. When adapted in magic form +9 INT and -3 WIS. Adapt bonus does not change when changing to a different adapt form during combat.

Copy Cat Love. When copycat, love is applied to the creature and adapts physical traits to personality traits. Even the alignment will change to its owner. The Crystal cat will become grey and back to its crystal form if its owner dies.

Claws. Melee Weapon Attack: +0 to hit, reach 5 ft., one target. Hit: 1 slashing damage.

Adapts—changes to said environment element that is touching them last at the time.