Dealing damage to an enemy with a Martial Art Skill grants you a stack of Song of Tang, lasting 7 seconds. While current HP is above 50%, each stack of Song of Tang increases Critical Damage dealt by your Martial Art Skills by 3%. While current HP is below 50%, each stack of Song of Tang grants your Martial Art Skills 3% HP Drain with a maximum drain rate of 2.5% of your Max HP per second. Song of Tang can stack up to 5 times, and up to 2 stacks can be gained per second. Hitting no less than 2 enemies simultaneously with a Martial Art Skill grants 1 extra stack of Song of Tang. This effect can only trigger up to 2 times per second.