Quest question

I've been doing the premium maps, using the swamp elixir, and it says 3x quest completion what does this mean? I haven't been advancing on the first quest from riksa while I'm doing the swamps, does this mean I have to clear quests until I get to the certain quest that the elixir would work and give me 3x the advancement? I've been killing oktal xar , but stuck at 0 orbs

Riksa's quest is for ok'tal rax not the new cap

Sent from my Z828 using Tapatalk

And when it saysb3x quest rewards it means there's three bosses, not that each boss drops 3 of them at a time