I'm really bad at coming up with names, but I have some skill suggestions that I think are good.
Disciple - Collision - The caster targets one individual, be they player or mob. Upon use, all mobs and players (not in the disciple's party) within 10 blocks of the target slam into said target. Each entity that was launched would take a minor amount of damage. The target would take that same amount of damage multiplied by how many things slammed into it. The skill would have a long cooldown and high mana (or stamina... not sure what disciple uses) cost. It would be devastating to the target and would also draw all other foes into one spot where the disciple and his friends could attack them easily. Use of Bolt after Collision would be devastating.
Dreadknight - Steelcutter - This would be a 5 or 10 second duration ability. It would split the damage of the Dreadknight's axe between the target and the target's armor. Basically, half of the damage, rather than affecting the target, would go directly towards damaging the armor. The other half would still damage the target, but would not be affected by the armor (similar to how Eviscerate bypasses armor). It would have a long cooldown and moderate stamina (mana?) use.
Dragoon - Repel - This would have a 10 second duration. Upon use, the caster would gain a heavy knockback with every hit for a short amount of time. It would allow for a surrounded Dragoon to clear away his attackers and also provide fun near cliffs. It would have a moderate cooldown and low stamina (mana?) use.
Bloodmage - Asphyxiate - In this spell, a Bloodmage interrupts the target's respiration. The target is slowed down majorly, and the air meter appears on their screen. It decreases as though they are underwater. When it runs out, their health degenerates as though they are drowning. The caster is also slowed majorly. The caster's health decreases very slowly while the target still has air. When the target runs out of air, the caster experiences the same damage the target does. The spell can be stopped by EscapeArtist (or something similar) being used by the target, the caster being silenced, the caster or target taking damage from a source other than the spell, or the death of either party. The survivor of this spell is the one who started with more health, basically. It would have a very high cooldown, and the health usage would depend on how long the spell lasted.