Originally Posted by
Triston
I dunno why people keep writing off AST. Their potencies are lower than SCH and WHM certainly, and in most speedrun situations (medium mob group, tank busts all cooldowns and takes fairly low damage) I would say WHM would be best. However, people are forgetting speedrun situations like Brayflox HM: high mob density, tank busts all cooldowns and STILL takes a ton of damage. In these cases I would much rather have an AST, because in a situation where the healer is spamming heals to save the tank, only AST and SCH can provide extra DPS to the group via buffs, but SCH will likely need Whispering Dawn for the healing throughput. Cards also aren't heavy on RNG, because in a high aoe situation, 4 of the 6 can improve DPS. (all but Bole and Ewer)
tl;dr normally WHM, in high-density situations AST.