Now, that was good Gota love Jackie Chang Adventure!

Anyway back on topic. No matter what the casting cost is.
MP (Most RPG)
TP (Phantasy Star)
Gems (Soul Blazer)
FP (Mario Rpg)
Souls (Raziel and Kain Games)
Reg(UO)
And more...
If it's magic. It is magic.
Fire weapon
Ice weapon
Lightning weapon
and so on...
Are also doing magic damage.
Unless for fire weapon it would actualy be put in gas and lighted up with something none magical. Every now and then.
Or that the ice one would be in a pack of dry ice.
Or lightning would be working with duracell or something.

Well i dont think i need to make more example. Im sure everyone understood