Hinder: Increases the amount of TP required to use a special move.
When used on a mob, the amount of TP required for them to use a special move is increased by 30-75% which means less frequent special moves. Below 25% HP this means the mob will need a minimum of up to 175% TP to execute a TP attack instead of the usual 100%.
Dispel should get a bonus with Enfeebling Skill so that every 100ish Enfeebling Skill, Dispel will remove another debuff (RDM main only). We don't need to waste another spell slot on a tier 2, just make it scale like how Bio and Elemental Debuffs and Enhancing spells do with skill.
Poison III would be welcomed because 10-11/tick isn't much now that most NMs have 150k+HP now, besides BLU's Disseverment poison is already 16/tick.