User blog comment:Linathan/Unit Spotlight: Invictus Xeno Melchio/@comment-36.78.14.89-20151004052415/@comment-26140304-20151005003623

Aurelia seems to have trumped Melchio due to the fact that her Def conversion buff is better than Melchio. It's also considering the fact that Aurelia has one of the best SBB heals in the game, especially pairing that with the ability to attack. Overall, Aurelia provides more utility than Melchio.

Sargavel is rather less offensive than Melchio given that Sargavel's BB does not attack. It's quite hard to determine who's the better anti-debuffer since they have different abilities as anti-debuffers. Melchio provides more offense with his multi-element BB/SBB/UBB and a Def conversion buff that is inferior to Aurelia's, but Sargavel provides more BB spamming utility given the BB fill rate buff.