Please keep discussions about RDM melee or other drama in the other RDM spell thread that got derailed, thank you.
Crisis
Enfeebling Magic (single target, enemy)
Inflicts Critical Hit Evasion Down and Magic Critical Hit Evasion Down on target. (This allows (magic) criticals even if attacker has 0% critical hit rate.)
Erode
Enfeebling Magic (single target, enemy)
Inflicts Defense Down and Magic Defense Down on target. (An alternative to Dia III if you don't care about the slip damage.)
Barrier
Enhancing Magic (single target, party)
Grants Damage Taken Down effect to target. (Stacks with Phalanx, Stoneskin and Invincible, but not Perfect Defense.)
Contaminate
Enfeebling Magic (single target, enemy)
Inflicts existing negative status effect(s) on caster to the target.
Fatigue
Enfeebling Magic (single target, enemy)
Reduces target's maximum TP based on enfeebling magic skill. Excess TP is lost. (Cannot lower MaxTP below 100, and effect diminishes by 5 TP each tick until MaxTP is back to 300.)
Reduces target's TP consumption effectiveness when using TP based attacks. (For example, using a 300TP attack would only deal damage equivalent to 100 TP. Actual TP reduction depends on skill and duration the debuff is on the target. The longer it lasts, the weaker it gets.)