Lathliss, Dragon Queen is a rare Legendary Creature — Dragon card from Secret Lair Drop (SLD), collector number 1146. Current market price: $7.20 (foil $6.50), TCGplayer market prices via Scryfall.
Flying Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying. {1}{R}: Dragons you control get +1/+0 until end of turn.