D&D General Miss at Most Once per Duel with Studied Attacks, Elven Accuracy and Vex?

[Silam]

Note that if you don’t care for 13 levels of Fighter in your build, you could do even better than this combo by swapping out Studied Attacks with the Boon of Combat Prowess.

Peerless Aim. When you miss with an attack roll, you can hit instead. Once you use this benefit, you can't use it again until the start of your next turn.

So… don’t even bother missing. If your first attack which doesn’t have advantage yet misses, then you simply hit instead. After that, Vex and Elven Accuracy carry you through to the end.