Dont understand the need to even carry avant around because is there any sitution in the game where accuracys capped on war (Should be using ogier's if not) but attack isn't?
Legion, depending on your BRD(s). I'd also say your attack probably isn't capped in Abyssea unless you're using food, getting attack songs/rolls, or using temps... but you should use Heca Legs there anyway.
But, I guess you'd mainly be using Resolution in Legion, which has an 8% attack penalty. Resolution's much much better when attack's capped, why DRK tends to top WAR until Mighty Strikes is used.
I also only have 1/5 charge merits so never bothered carrying around Relic+2. Really only 1 DA.