Putting that aside, Sallie and Loona's similarly snarky personalities could help them get along and bond with each other, and I think Sallie's high body count and criminal record + Loona's aggresive temperant, impressive combat skills and delinquency would make them a good team and match-up. If a Loona/Vortex/Beelzebub polycule can't happen for whatever reason, this is probably the Loona ship that's most likely to end up canon. I'd say it has slightly more of a chance than Loona x Collin for example. (Key word "slightly")