Custom unit fun

Just playing around on unit builder, here’s what I came up with

He would be a fire Legendary Hero who would increase the speed of fire blessed heroes. None of his skills can be inherited.

Exalted Falchion - MT 16 Effective against dragons. Counter from any distance

Heroic Wrath - Cd 3 Reduces enemy defense by 30%, and increases damage dealt by 30% of damage taken

Naga’s Blessing - When under attack, increases Def/Res by 6

Lightning Stance - This unit always counterattacks first. If there are more foes within 2 spaces than allies, not counting the attacker, follow-up happens immediately if applicable.

Shield of Flames - At the start of each turn, all allies in the 4 cardinal direction receive +4 Def/Res. Boost only granted if ally has less Atk than this unit before counting any buffs.

I tried to make him powerful, without being game breaking

EDIT: After being informed that all the weapons in the game that are effective against dragons, a fact I did not know as I’ve never paid much attention to lore, I removed the dragon weakness from Naga’s Blessing. I was trying to think of some trade off for it since it is Distant Def and Close Def in one slot, but I suppose against the likes of the Brazen skills, it’s on equal ground