i have one for every spell 3 para 2 slow but will prolly update to 5/5 slow and para
Very very bad idea. Put at least 2 in Dia III so you can get 60s out of it. If SE ever makes RDM viable again, one of the most important debuffs you can throw out is Dia III. It stacks with all other forms of defense down and is the highest form of Dia you can get.
Defense down scales similar to haste, the more you have the more potent each additional amount becomes, until you hit Ratio cap.
Ex:
10% Dia is (100/90) = 1.1111 (11.11%) increase in attack
15% Dia is (100/85) = 1.1764 (17.64%) increase in attack
20% Defense down (Agnon) is (100/80) = 1.25 (25%) increase in attack
Agnon + Dia II = 30% Defense down (100/70) = 1.4285 (42.85%) increase in attack.
Agnon + Dia III = 35% Defense down (100/65) = 1.5384 (53.85%) increase in attack.
Augmented Agnon + Dia III = 40% Defense down (100/60) = 1.6666 (66.66%) increase in attack.
Going from Dia II to Dia III is anywhere from 6.53% to 12.81% increase in attack power.
None of the other merits get anywhere close to doing what Dia III can do. Unresistable increase in the attack power of the entire alliance, including pets and all Blue Magic. A RDM without Dia III is like a Bard without Minuet.