After all the zodiac dungeon runs in 2.x for relic I think adding damage to Flash now or in the future would be half great, half infuriating, but thats the passive aggression showing.

If War Drum is given in the future, maybe do a copy>paste MNK's Elixir Field with a Shield Block % recast reset (ie Low Blow) and add a Paralyze debuff (why's no one Paralyze yet ;_; ). Or nearby allies get TP or HP per use in addition to being the PLD AOE damage Weaponskill. Seems fitting for the name.