manafiend cluster plant thing

[Cheyrn]

In Suramar, in Falanar, across the creek from the feathermane king, wife and cubs, there was an object with a paw above it, like daily pet battes have. Clicking on the paw began a battle with 3 manafiends. I have not seen it again. Does that spawn periodically?

[Gráinne]

It might have been this World Quest?

http://www.wowhead.com/quest=41931/mana-tap#comments

If so, it comes and goes with the other pet WQs.