Quote:
Originally Posted by Targren
I'm pretty sure that once the trial runs out, those skills will have locks on them again.
Correct. Once the trial runs out, any skills available exclusively in that campaign/expansion will be locked until you purchase said campaign/expansion.
If buying Essences is too expensive, then farm for Feathers and Glittering Dust and ask a friend, Guildmate, or Alliance member to craft them for you. Of course, you need to also give them the crafting cost (~250g iirc), but that's cheaper than just buying the Essences outright.
There's always a way to get what you need for little cost, and if it's worth it for you to Perma, it's worth it to be able to no matter the required costs since you don't have access to Glyph of Swiftness and it seems like you aren't wanting to run A/Me to use Arcane Echo.