Baby Stickleback

Psychic Reflection. If Stickleback takes Psychic damage, all of the psychic damage it takes is reflected back to the damage dealer.

Mind Rend. All of Sticklebacks attacks deal and additional 1d4 psychic damage. (included in the attacks)

Blind and Deaf. Stickleback can only Hear and see by affecting other creatures using a special ability called mind tickle.

Mind Tickle. Stickleback establishes a connection with a creature that lets it see and hear out of that creatures' eyes and ears. Since it is so weak right now, it can only do this to willing creatures.

Lose Scales (1/day). If a creature spends one hour and makes a DC 16 dexterity saving throw, they can successfully cut off 1d6 + 1 stickleback scales, which can be used to make psychic damage resistant +2 armor if you collect 100 of them

Multiattack. Stickleback makes 2 Claw attacks and one Bite attack or 1 Psychic blast attack if it can.

Claw. Melee Weapon Attack: -1 to hit, reach 5 ft., 1 target. Hit: 4 (2d4 -3) slashing damage +1d4 psychic damage.

Bite.  Melee Weapon Attack: -1 to hit, reach 5 ft., 1 target. Hit: 6 (2d6 -3) piercing damage +1d4 psychic damage.

Psychic Blast (Recharge 2-3.) Ranged Spell Attack:  range 40/80 ft., 1 target. The target must succeed a DC 13 Wis saving throw or take 6 (3d4) Psychic damage on a failed save and half as much on a successful one.

Dash. Due to Sticklebacks Far Realm Nature, it can dash as a bonus action.

Teleport. before getting hit by an attack, Stickleback can teleport up to 15 ft away from where it was standing.