Thanks for the replies guys, that soul reaper addon is perfect, only took a few seconds to edit too FB too.
if event == 'UNIT_HEALTH' then
if unit ~= 'target' then return end
local health, maxHealth = UnitHealth('target'), UnitHealthMax('target')
if health > 0 and health / maxHealth <= .25 then
if UnitExists('target') and UnitCanAttack('player', 'target') then
self:GetScript('OnEvent')(self, 'UNIT_HEALTH', 'target')
Credit too : http://www.wowinterface.com/download...oulReaper.html