How much does Tribulation reflect in pvp as far as damage goes and does this reflect SPELL damage as well? "This is a bard spellsong which disrupts the target's ability to concentrate, reducing their Hit Chance and Spell Damage. The spell song also has the chance of causing any damage taken by the target to cause a burst of direct damage proportional to the damage taken. The amount of direct damage is proportional to the Discordance skill of the bard and the chance for the direct damage to take effect is proportional to the Musicianship skill of the bard. The damage further increases 1.5 times with Slayer instruments. This spell song is affected by the target's Magic Resistance."