[Ideas] Magic, spells and casters

Magic in Elemental: War of Magic seems to be a bit flat right now. I have some ideas to make it more fun.

1) Spells should grow! Now when champion increase INT spell only got some more dmg. Imagine fantasy world where adept caster and master of magic cast same looking fireball with different dmg... it`s a bit weird. I think that it would look so that adept can cast fireball so small to fire candle and master can take whole unit with it.

So my idea is: not only change dmg of spells but also look, zone of fire.

For example: Adept of magic (with low wisdom or some other stat) can cast small cloud of ice rain (dmg on one tile) and master of magic (with high stat other then Int) can cast big storm cloud of heavy ice rain (dmg on 6-8 tiles).

Int -> still make spells more powerful (increase dmg)
Wisdom (or other stat) -> make spells effect zone bigger.

So you can choose to go a path to have more powerful spells or with bigger effect zone or combine this two paths. It could be really fun

2) This game is about elemental. There should be a possibility to combine spells (only from air, water, earth and fire spell book).

There are three ways on doing it:
a) by learning combined spells
by combining during combat/casting
c) by combining spells by player and writing them in spell book

ice-fire rain 
ice-fire ball (first freeze enemy then blow him with fire).
earth-fire ball (meteor)
water-earth (create swamp)
earth-fire (create burning wall)
earth-fire shield (not only gives shield to unit but also dmg attacking troops).

(If you have watched Avatar: Last Airbender you can imagine what can be done by combining elements)

You can choose path to master one element or be flexible and combine spells of all elements (Imagine four elements rain spell )

I`m waiting for your ideas and suggestions.