After jumping in the blue glowy rabbit hole that leads you to Sapphiron's lair you're faced with an area resembling that of the tree place in the Nexus. But, instead of treemen you come across the remains of a dragon- Sapphiron. One Ready-Check later and you're running in throwing a PoM as you see the remains come together. Ever see Felmyst? He's much like that.

Hopefully, you haven't forgotten your frost resist gear. Everyone in the raid takes 1200 frost damage a second until Sapphiron is dead. If you're too slow, it shoots up to 7200 damage a second after 15 minutes. You should probably kill him before that. A tip for you healers, make sure everyone stays topped off. If one of your members is Ice Bolted and dies... you just lost a hiding spot. The Bolts don't do much, around 3k if I recall, so it should be pretty easy to avoid this. Keep up PoM. Don't forget to heal yourself. CoH, PoH, both are wonderful here, but be careful not to drain yourself too soon. Use your mana pot, 'Lock candy, Lifeblood if you're a flower picker, Shadowfiend, etc. Once Sapph is at 10%, he won't go to phase two. Congrats. Yay Malygos key.

On to Kel!

This fight starts off with waves of trash...ugh. Lich+trash waves = old. But, no worries. The Skeletons can be one shotted with SW:Death. More than likely, no one will be taking damage until an Abom pops up, and then, only that tank. Toss some DoTs on a few banshees, kill some Skellies. Don't overdue yourself- mana is your friend.
Kel doesn't hit too terribly hard by himself. But, if uninterrupted, his Frostbolt volley can get annoying. I usually stand in the middle, so PoH was able to heal everyone in my group back up to full. When someone gets tombed, toss a PW:Shield on them. I know it may not seem like much, but it's plenty to keep that person alive. At 40% or so two beetles come out and should be picked up by the OT. The OT CAN be tombed. Keep him topped up, if it looks like it's getting close, use Guardian Spirit if you have it.
In my opinion, this is one of the more healing intensive fights. Keep on your toes and you should do just fine =]