If you wanted an answer for Elena you should've pulled Golbez. He can hit Elena with the right build (aim dark dragon staff+ Gauntlets of light+ BRHVC on BRH + Dark Moon VC on him). If you also run Solidus VC on a third unit then you're set to devour Elena. Whenever I want to beat and Elena team I play the right counter team. Save your fire team for ice comps.

There are a number of aim based accessories make one. Not every character needs armor. I use Rosa as a archer (low faith) I equip her with a Bow, Alex Ring, and barrier TMR item like sacred step or steel maidens necklace. I preferer sacred step it give 5 agi, however the healing of the other can be clutch in GB.

I’m general, Fire units don’t have much in terms of guaranteed hit, and they’re often slow.

I usually dodge…dodge-teams, but otherwise equips and espers like others said.

As an evasion based account, no to added acc. What's the point of pulling and building evasion units if every element can hit them? You can still build fire to take on evasion by building for acc through espers/vcs/equipment. Also, I'm pulling for Terra and am more excited for her than the other 2.

Given that they are elementalist, I’d argue you should be fighting Ice teams, or just avoiding wind.

There are no “scams”, but plenty of psychological moves (and the community is partly responsible for that).