the spells should preferably not have to be triggered
a modifed version of a spell with canged values, arts, etc. is still a custom spell.. just throw me some ideas..
Sounds a lot like Stasis Trap, no triggering.What about an entangling roots trap? It will require triggering.
Something like an invisible root that sinks in the ground, and when an enemy comes out it springs up and entangling roots the enemy.
Sounds a lot like Stasis Trap, no triggering.