What spells do I need if I Betray?

[Rayche]

I already have a list of level 70-80 spells I'll need to make, but what spells do Defilers have from previous tiers that don't get upgraded?I'm assuming I get to keep my copy of Umbral Trap?I haven't really been able to use a Melee spec in forever, and as a pure healer/curing/debuffing machine I'm finding myself slightly lacking...I need to make sure I'm not missing any crucial debuffs or buffs etc.Thanks.Any tips on how to make the Betrayal quest faster/easier would be mucho appreciated as well.

[Sedenten]

Abasement and Tendrils are the two that I can think of off the top of my head.  Tendrils you can take as the tier 7 M2 choice (which I personally did).  Our normal group cure doesn't upgrade, but is level 70.