Concentration

Concentration grants the "Endure Effect", which stops flinching from being attacked (but not for the entire duration of Concentration, only until the hit charges are all used), while increasing ATK and Accuracy. Also lowers the defense of the caster.

On iRO, this skill is known as Spear Dynamo for some reason.

Patches

 * Patch (2019 Oct. 16)
 * The buff icon is added.
 * Patch (2018 Dec. 12)
 * Concentration Skill ATK% increase effect is different from the description is corrected.
 * Patch (2018 Nov. 28)
 * Changes will be made to retain the effect even when armor is removed or replaced.
 * The damage increase method is changed from 5% level damage to 25% ATK 15% increase.
 * Reduced armor reduced from 25% to 15% at Level 5.
 * Duration increased from 45 seconds to 60 seconds at Level 5.