Don't know how anyone could say mk. It's so ass.
Recasting buffs is aids, like
>>713270574is saying.
80% of mk spells are completely worthless, and they're close range so you can't even cast them anyway without getting knocked on your ass or taking unnecessary damage.
So there's one viable playstyle. Spam magic cannon and ruinous sigil. Which is strong, but requires 4 casts (weapon buff, 2 cannons, ruinous sigil), and even them there's a chance the ruinous sigil interaction doesn't work and you barely do more damage then if you'd just been meleeing the whole time.
And if you're just going to spam projectiles, why tf wouldn't you just play a pure bow or caster class?