As a cat, you gain +3 to your dexterity score and are half proficient in Acrobatics. You also halve any non-magical falling damage taken.

You add +1 to your Wisdom score.

You have 60ft darkvision. You also get advantage on Perception checks that rely on your nose or ears.

You are proficient in Stealth.

You are proficient with your claws, which deal 1d4 slashing damage on a hit and reach 5 ft. You may attack with your claws as a reaction.

You may use your claws against an enemy while climbing but must remain stationary while doing or may instead release whatever you are climbing on and fall.

You are proficient with your teeth, which deal 2d4 piercing damage on a hit and reach 5 ft. Your foe must make a dexterity saving throw to avoid these.

You have -4 to your Strength score. You also get half your hit points per level.

You get -2 to your Constitution score.

You get advantage on Death Saving Throws.

Any effect that suppresses magic returns you to your former state and temporarily strips away conscious thought, removing -10 Intelligence.

This can be averted with a successful Charisma saving throw of DC 18 - your proficiency bonus.

Should you leave the area of effect or its duration expire, you awaken once more.

You get +1 Initiative.

You can speak the feline language - plus another of your choice.
You also have advantage on Animal Handling checks.

You got disadvantage on any armed combat.