I had never heard that as a verb. Hath not a half-elf ears?
Only if Shylock likes triangles...
So...Psychics don't get Burning Hands. I'm scrolling through the spell list and no good AoE spells come to mind. This is what I get for trying out the psychic... :D
Some suggestions.Actually they have a 1st level AOE spell right at the start. Sundering shards, 1d6 to a 5 ft area. You just need items to blow up.
Sonic scream-short ranged cone, lasts for 1 round per level. You can use it three times to do 4d4 damage, 2d4 damage and then 1d4 damage at 15 ft.
3rd Pellet Blast 30 ft cone-shaped burst, 1d8 per every two caster levels, does piercing damage and that damage takes on the material of the pellet you use, which can get pricy (20 to a 100 gp depending on material used.
4th Black Tentacles, but nothing to really damage a swarm
5th jack. Theoretically you could use sonic thrust or telekinesis to throw multiple bombs and what not.
7 Reverse Gravity-Your best friend
8th Shout Greater, Earthquake-Blast them for sonic damage and then collapse a ceiling on them. Works every time.
9th Telekinetic Swarm-1d6 per level in a 40 ft burst centered on you.