Littjara is a common Plane — Kaldheim card from March of the Machine Commander (MOC), collector number 56. Current market price: $4.20, TCGplayer market prices via Scryfall.
When you planeswalk to Littjara and at the beginning of your upkeep, create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.) Whenever chaos ensues, choose a creature type. Put a +1/+1 counter on each creature you control of that type.