Hymn To The Eternal Scions

Years ago, in a distant land, there were 2 warring Kingdoms-THe Sigma Empire, and the Omega Kingdom. The kingdoms were overseen by deities of great power...the Eternal Scions. These mystical beings created the land of Ge and created 12 people, 6 of them each forming the Kingdoms aformentioned. The Scions made them hate each other, and put powerful weapons, the Eternal Arms, in their reach. There were many casualties..., But one day, a wise sage from Omega Kingdom, Asmodeus, sealed the weapons in an impenetrable fortress. And finally there was peace... but not for long! THe Omega Kingdom decided to find the Eternal Arms once again. This is where our story begins...

You play as 3 warriors from the Sigma Empire-
Zelig-an archer with balanced stats and has a SPD and LUCK advantage., but low in DEF/MDF.
Ignace-a swordsman. Has an ATK and DEF advantage, but low in MAG and LUCK.
Astrid-the only female party member. Has a MAG/MDF advantage but low ATK and DEF.

Features-
There is going to be a summon system. You get to summon the 9 Scions.
Genesion-the creative agent of the Scions.
Pyroas-controls heat. without him, everything would freeze.
Nyxis-controls ice and water. without her, evrything would burn up.
Diiron-controls lightning, and the energy that drives life.
Phylux-controller of light and protects travelers.
*Erebox-controls darkness. Primary villain. Created the hate between the two Kingdoms.
Chronion-directs the fabric of time and space. Time would stop forever without him.
Katalyx-the agent of decay. allows the death of living things, and takes the dead to the underworld.
*Catastrophex- Destroyer of worlds. Another primary villain...much more powerful than Erebox.
*You can not summon these Scions until you defeat them and find the true evil in the world. (It's not them! But that's too much of a spoiler.)

There are 5 elements-Fire, Ice, Lightning, Light, and Dark.

*waits for more info to crop up*

I have some new info...in addition to the edits to the top post.
There will be an Earth Element...I suppose it evens the game's systems out.
Fire<-->Ice
Thunder<-->Earth
Light<-->Dark
There are 4 basic spells for each element-
Spell 1-150 damage to one enemy (5 MP)
Spell 2-300 damage to one enemy (10 MP)
Spell 3-150 damage to all. (20 MP)
Spell 4-300 damage to all. (40 MP)
Then there are the special spells that you must go to great lengths to unlock for each element-
Spell 5-200 MP damage to one enemy (15 MP)
Spell 6-400 MP damge to one enemy (30 MP)
Spell 7-300 MP damage to all enemies (75 MP)
Spell 8-600 HP damage to all (80 MP)
And the ultimate spell of all...
Omega Spell-750 HP/MP damage to all (200 MP)
This Omega Spell, with Zelig or Astrid with high magic, can spell doom for most basic enemies.

Also, there will be 3 worlds to explore (including 1 secret world), 10 dungeons, and many towns. Also, the capture mechanic from FFX will be modified and used. I'll try to work that out, but it will definitely involve many treasures.

Finally, I have some healing items in the game. This will be updated.
*Potion-heals 100 HP
*Tincture-heals 25 MP
*Herbal Drink-cures poison
*Kinesis Crystal-cures slow
*Silver Spike-cures stop (yeah, I know this is a ripoff of FF...but it works.)
*Angelic Potion-revives a dead character to half health.
*Blessed Herb-cures all statuses.

Just make sure that that spell isn't overpowered. I can see the final boss being considerably easier if you could take huge chunks of MP off so he can no longer use his powerful spells.

The final boss has a spell that makes him immune to magic, and skills. He also has incredibly high physical defense, but low magic resistance. I bet you may know what ability is required to beat him. He also regenerates HP/MP in one action, and he has a minion...