Squee, Dubious Monarch is a rare Legendary Creature — Goblin Noble card from Dominaria United Promos (PDMU), collector number 146p. Current market price: $1.41 (foil $1.75), TCGplayer market prices via Scryfall.
Haste Whenever Squee attacks, create a 1/1 red Goblin creature token that's tapped and attacking. You may cast this card from your graveyard by paying {3}{R} and exiling four other cards from your graveyard rather than paying its mana cost.