The bard AA Rallying Solo does not increase endurance as it claimed by the description Target: Self Duration: 30s (5 ticks) 1: Fragile Defense (1) 5: Increase Current Mana by 10000 per tick (v417) Rallying Solo IX, when activated, increases your mana and endurance regeneration by 10000 points for 30 seconds but will break early if you take any offensive action. This solo can only be performed if you have less than 30% mana or endurance.
Also worth noting that it looks like it is not respecting the "30% endurance" requirement. Cautionary bit that it should "OR" not "AND" if/when this gets fixed.