Originally Posted by
Unregistered
Horus is fine as a sub for fire teams, as the +10% bonus brings her up to 660 HP/2118 Atk.
She can actually work in main slot in some situations down the road (...way, way down the road) if you don't need much effect-wise, as fire does eventually pick up more eidolons with good atk.
Right now, you can have 2x Adramelech (base 558 HP/2058 Atk; 613 HP/2263 Atk after 10% bonus) (effect: +double)
Fast forward to new year's for Iwanagahime (base 624 HP/2004 Atk) (effect: Hankou or 'counteroffensive'; it's the name for that less HP remaining->more assault effect )
Then... oof, next July comes Marchosias (base 630 HP/2052 Atk) (effect: +burst performance) ('performance' includes soft damage up)
By this point, maybe you'll have the fire kaiser, so there's 5 sub slots covered.
But if not, then in next August there's Resheph (base 666 HP/1974 Atk) (effect: 3 turn 10% wind resist)
If you're not that hungry for raw atk, you can probably do okay after Iwanagahime, with her/Adramelech/Adramelech/Crom Cruach/Yatagarasu as the sub slots if you really want to run Horus? Replace Yatagarasu with fire kaiser if you don't need that atk debuff anymore?