The Elements! need spell ideas.

[burned]

I need spell ideas that are based on Ice, Fire, Lightning or Earth.
So these spells will be used on my hero arena/dota/something new type of map. I think im gona create some spells that can power up other abilities
or cancel some effects like inferno > freezing. And freezing field + freezing wave = something new

I have done some spells already.
Fire:
Flamethrower (channeling spell: rapidly shoots flames to damage enemy)
Flame Warp (Kinda like blink, but has delay and deals some damage to 2 locations)
Inferno(Damages Nearby units and removes ice type buffs)
(need ulti, maybe something based on sun?)

Ice:
Freezing wave(shoot line of ice that stuns enemies that it hits)
Freezing field(slows enemies movement, degen aura and stuns random units)
Healing orbs(Heals the hero)
+ extra spell if unit is affected by freezing aura and is hit by freezing wave it will take some extra damage and be trapped by ice cubes.
(need ulti)