Quote Originally Posted by felix View Post
first off, you cant stack fafnir and typhoon: summon buffs occupy separate frame, but to my knowlage ALL summons occupy same "summon-only frame", meaning that no matter how many summons with atk buff you have, only one can be active at a time.
secondly, you never know if you will change your soul. in fact you want to change your soul, depending on what you face: need more helaing? Take andromeda (who can use lance btw) need debuffs? Mordred, etc, etc, So it is always advisable to have multiple weapon types so that you wont be stuck with R-tier weapon just because you need to use soul to which you have no good weapons.
and finally, hp on weapons, weapon skills and eidolons is not that important, since there's plenty of ways to mitigate dmg. So its much more important to stack dmg, and having SSR weapon with assault skill is literary the best way to get more dmg.
Basically this.
If your main element isn't fire then go for max eidolon or as close as you can (also get at least one copy of weapon) and if your main element is fire... get both to max, although you will probably want to focus on weapon first.