idc about dmg/delay but my idea of what some mythic-esque weapons should be...
DRG
-Augments "Call Wyvern". (Wyvern is now a Vouivre Wyvern. Wyvern has increase atk/acc. Wyvern has double potency on all breaths. Wyvern peforms Jump and High Jump abilities along with the Dragoon.
BRD
-Extends Song range. (Songs can hit alliance members.)
-Magic Acc +20%.
-All Songs+1
BLM
-Elemental Damage +20%
-Magic Acc +20%
-Augments "IV" Spells. (IV Spells are V spells.)
-Occasionally converts Elemental damage done to mp. (8% Chance at a full damage>mp conversion.)
WHM
-Enhances "Cure" effect. (Cures receive 20% potency bonus and generate less enmity.)
-Enhances "Divine Veil" effect. (Divine Veil is always active)
-Augments "Barspells" effect. (Barspells grant a 100% resistance to designated enfeebling barspells.)
Espada
(Sword) All Races
DMG: 40 Delay: 213
Occasionally Attacks Twice
Adds Refresh Effect
Enhances Convert Enhances Fast Cast
Aftermath: Regain Effect
Lv. 75 RDM
Hidden Effect: Spell Potency +20%
Accuracy +20%
Magic Accuracy +20%
Magic Evasion +20%
Hidden Effect (Aftermath): Haste +10%