User blog comment:Contractas1/Revive Promote Surge/@comment-70.138.7.226-20120817180003

Promote and revive are unused spells because the utility that they provide is extremely limited, especially in comparison to spells like flash, ghost, and teleport. Revive is strongest late game when death timers are upwards of 45 seconds, but chances are if you desperately need to Revive, you're going to lose anyway. Promote is kind of terrible. It doesn't push hard enough for it to be an efficient split pushing method unless the towers are already nearly dead and/or the other team is an idiot. Plus, taking one of these spells forces you to forgo your utility (flash, ghost, teleport, CV) or your offensive spells (ignite, exhaust, smite, ect.)

Surge is a crappy spell not simply because it provides an awkward pairing of stats, but because you need to be actively attacking and using abilities for the full duration of the spell. Couple this with that your champion becomes far larger and glowing, it essentially puts a giant "CC/Kite/Murder me please, because my stats are slightly better." sign on their head. compare this to other offensive summoner spells like exhaust and ignite, which are fire and forget. You exhaust your target, and now they are crippled in this fight, you can simply overpower them since they're dealing a pathetic 30% of their initial damage. Ignite secures a kill because you can pop it at the start of a fight and back off. Surge forces you to commit to make the best use of the spell, and since its so flashy, its extremely avoidable by enemies. They can simply back off and force you to waste precious seconds of your mediocre stat boost. Having had tried surge on champs like Pheonix Udyr (Its really bad), burst mages (extra AP? No, just take Ignite), and hybrids like Kayle, its a dramatically underwhelming spell. I'd honestly prefer they just remove it, its not very good.