Fantasy Magic Swep, need...people to do all the hardwork for me, or at least help

Not sure where to start but, to put things frankly I would like coders to help me make some “magic” sweps because Ive been having difficulties doing it myself plus Im lazy, if nothing else I would like some good tutorials other than the ones on the wiki

First off I need a fireball spell, left click would set an object you are pointing at on fire and right click throws an incenerary grenade thing which sets everything in a short radius on fire

One thing I havent found any of are magic missile spells, left click would fire a low damage bolt of energy and right clicking would create a homing ball of damage that does a bit more damage tracking foes like the rpg

Finally I would Like a “stun” spell which would stun the foe for a brief period of time.