Arena Offense Team Rate

So far my Arena Offense team has been doing really well (got me out of my slump into Arena 17) and now I'm back in Arena 19. I'm pretty far from getting into Arena 20 ever, since I don't have much merges, but I want to have my main team have the potential to last up there someday.

The members are Nowi, Dorcas, and Lyon. I'm a bit concerned about mergeability, since Dorcas and Lyon are mostly limited. The BST is lowered by Lyon too but it's really useful having him on the team. He's a high BST mage anyways.

Nowi serves as a super powerful physical tank, and is my Ally Support. She tanks Red mages for the team too, unless my Bonus unit can do that better. Dorcas is my generic Reinhardt and Blue unit counter - he has such amazing mixed bulk that he fears almost nothing. I'm hoping I get one with +Res -Spd at some point. Lyon is my ultimate Axe unit counter. He starts with Moonbow procured already, and doubles any Axe unit thanks to Breaker, making him super powerful. He also can check Bow units if Nowi is needed elsewhere, and beat Green mages and Grima (with some help.

In the future, I'm considering swapping Lyon out for Soleil again. Originally it had Soleil, but she was a bit too inconsistent at killing Green units. Then I swapped to my +Atk -Res Zelgius, but he just didn't have enough Res power. I'm looking for a Res-gifted Red unit essentially, that still scores decently.

Nowi (+Def -Res Lvl40+1)
Lightning Breath+ (Def)
Rally Def/Res
Aether.
Steady Breath
Guard 3
Infantry Pulse 3
Quick Riposte 3

Dorcas (+Res -Hp Lvl40)
Stout Tomahawk
Reposition
Aether
Warding Breath
Quick Riposte 3
Threaten Atk 3
Distant Def 3

Lyon (Lvl40)
Naglfar
Draw Back
Moonbow
Triangle Adept 3
Axebreaker 3
Drive Res 3
Quickened Pulse