Mei. I don’t personally play Mei but I REALLY wan’t a Mr. Freeze/Killer Frost esque Mei skin.
Like, imagine lore wise she didn’t escape Antarctica after waking up or never recieved Winstons message and so while stranded there she reverse engineered the cryostasis chambers and sort of turned herself into a living cryostasis chamber or turning Snowball into a mini one to keep her alive.