I have a player that wants to create a Wizard that uses telekinesis to throw weapons. His idea is to carry knives, ball bearings and such to hurl at people using a telekinesis spell. Reading different posts in the forums, I have few possibilities.
1. The throw things spell causes damage based solely on strength of the spell.
2. Use a spell to create a maneuver “Enchanted Throwing weapon” and tag if for free on the next exchange using the Weapon skill to throw.
3. Use magic item slots to create enchanted throwing weapons. This would probably require the Weapon skill to use.
4. Get the supernatural stunt, Breath Weapon. Consider it a spell casting effect that doesn’t require stress to use.
Is there any other way it can be handled?
There's another way to do it. The number of shifts of power is your telekinetic Lift (use the lift chart). Discipline is still control and then aiming the weapon, but it does a base damage not on number of shifts of power, but instead on the weapon rating of what is thrown. A Claymore (sword) would be a Weapon 3, a gladius a weapon 2, a car probably a weapon 5. Extra shifts adjust how far you can throw it (adjusting the damage is probably too much, since that makes lifting big things never worth it). This isn't great for doing a ton of damage, but the Fallout would generally be less and you can get be immunities to magic if they are still vulnerable to cars. Also, it gives you a small benefit if you don't have a lot of conviction. A shift or two of power is enough to toss a weapon 2 or even 3 item potentially, so you can get a small stress benefit there (at the cost of requiring the item to toss).
While the rules don't go over using evocation for this, I think it fits with the brute force style of evocations. (Essentially, this is like a thaumaturgy to replicate a lift check for throwing purposes).
I personally like this since it gives a reason to do it for anyone (gets by magic resistance), but it also explains why no one in the book really does it (not cost-efficient the vast majority of the time). Of course, it doesn't necessarily work that well for a magic user that is going to solely focus on this, unless you want to either make it just do damage equal to the shifts like any evocation, but then the guy seems to have a huge advantage against creatures resistant to magic.
