Good to know then, thanks for the info. Most of the time I don't know what the heck I'm doing so seriously, thanks.
Well lul, there goes my hopes and dreams... nah, Tsuruya is where the gold is at anyway.
Let's see if I'm not mistaken:
0.- Think Rock, paper, scissors/Pokemon/Fire Emblem. The icons you see in the battle screen in the bottom left is how the triangle works, elemental damage does 1.2~1.4 extra damage while it protects the party around the same mount. Obviously this also means not using a fire team to fight a water boss.
1.- Yeh
2.- Yeh
3.- Yeh
4.- Makes the skill more powerful. I not so sure myself, since I'm also new to the game, but it seems to work on %, the higher the skill level, the stronger the effect is.
5.- It depends on the skill. If you enter on the weapon stat screen, you can see at the bottom what the effect does. Most of the time you will see "Assault" or "Defender", the first increase the damage output during battles & the later one increases the HP of your party.
6.- These numbers are like extra levels on the Weapon/Eidoilon, I think each level gives +8HP and +12ATK. These are inherited each time you use something to enhance something. For example, if you get a random Eido you want to use to enhance and that Eido has a "+2", that "+2" will be inherited to the new Eidolon. Useful to make more powerful weapons/eidos.
7.- Sadly no. To power up Kamis, you have to limit break them using the materials you get from SP quest and events. Souls stop leveling up at 20, but they increase their power as you level up.