A 3/2 flash lifelink creature would already be playable in a control deck looking to stabilize, but this one comes with Swords to Plowshares attached
EN-Q1 Ursula, Ruler of Lorcana Disney Lorcana: Ursulas Return Promo Cards Checklist 34/P1 Mickey Mouse, Leader of the Band 35/P1 Ursulas Lair, Eye of the Storm 36/P1 Hidden Inkcaster 37/P1 Mulan, Enemy of Entanglement 38/P1 Ursula, Sea Witch Queen 40/P1 Flotsam & Jetsam, Entangling Eels
It pairs well with cards encouraging you to attack or deal combat damage like Sword of the Animist and Gix, Yawgmoth Praetor
His first ability lets you either tap down one of your opponent's key blockers to swing in for that critical attack, or untap one of your own blockers to surprise your opponent during their combat step
Life and loyalty are all transactional, and Winter is willing to make a deal with anyone (or anything) as long as it benefits him in the end