Which lvl 50 staff?

[Raxie]

ok, which level 50 staff should i use? i think the cosmos ones are better than the fate ones.
if the cosmos ones are better, should i use the keeper's one or the mirage one. i heard that the keeper's on does aoe. does it?

[Conradin]

Not positive but I think keepers is the best. It also goes with the set I think