I am having a 2v2 tournament with about 10 of my friends. I was wondering if there were any good champions me and my partner could play.
Note: Each team gets 2 bans so if there were any champions that countered this combo could you let me know. Thanks! 
ValyrianBlade2 votesI'd imagine you're best off with a strong peeling champion and a strong damage champion who has some self-peel or mobility.
The damage champion is probably best off as an adc, something like tristana, corki, ezreal, graves, vayne (anything with strong self peel).
Since the damage champion is ad, your peel champion might ideally be ap. Maokai comes to mind. Although if you pick a caster adc you could go with Leona, braum, alistar, etc...
Or you could just go with 2 mobile assassins.
Brando ta slayer1 votesSo what do you think about Vayne morgana? Im a pretty good morgana because of the skill shots and he's a very good Vayne?
ValyrianBlade1 votesIt could work - at least Morgana can protect vayne from cc and has 2 cc sources of her own. If she can build zhonya's and vayne maybe gets a mercurial scimitar, they'd be a good combo.
You have nothing tanky and limited mobility though. Any 2 assassins would outright wreck that combo. Vayne won't be able to duel them until really late, which they'd never let it last that long. Good luck landing Morgana's cc on a zed and LB for example. Targeted cc would be preferable I think, or at least something more reliable.