A way to combine the opposite elements perhaps?

[Mr. Blue]

Hey, maybe for a future update, sequel, or DLC.. We could combine the opposites thanks to the things that happened in the ending of M2

Water + Lightning = ???

I honestly couldn't come up with anything for this.

Fire + Cold = fog

Like steam except no knockback. Does no damage on its own, merely clouds vision. Combined with an element, it'd be like a deadly haze of that element that could be blown away. Would hang around for a bit after being sprayed out

Rock + Electricity = Magnet
metal (or any) thing(s) would be attracted to spells using it.

Life + Arcane = Undeath
damages the living and dead...could revive dead players as zombies if used in place of life in the revive spell maybe?

shield + shield = no shield still

[Limeyhoney]

Yes. Devs! Get over here!

[Sousa]

yes

[crunchy nut]

Yes very good think YOU DEVS COME OVER HERE YOU DUMBOS LISTEN TO HIM (no offence just a really good idea plz no ban)