My main is a druid and, while I am not doing heroics raids, I do have raiding experience on multiple characters, so I am not completely a noob. When I cast Nourish on my druid, it pretty much costs no mana. However, on my paladin, casting Holy Light runs me oom fairly quickly. This doesn't make any sense to me. I do use Holy Shock and Word of Glory on cooldown for the holy power. I really only do 5-man heroics on my paladin, so that might have something to do with it. My paladin toon is Dalrymple on Black Dragonflight if you want to see the gear. Any ideas what I am doing wrong?