Upgrade the buff beam then guardian boost the auras into it.
Note 3. A spider drops dead center of the big silver circle. Create an archer blender with 7 summons. The spiders will drop into the center and be rendered inert.
Note 4 Run a guardian summoner Monk/Huntress or Huntress/Apprentice if you don't need the range.
Note 5 Run 2 guardian summoners on these. Monk/Huntress on the Seeds, Apprentice/Huntress on the DSTS. If range isn't needed run Apprentice/Huntress on both.
I run around on a 4th summoner open chests and flash some aura repairs. You can take the afk a step further by running Djinnlet/Imp and park him near the tree where the blue arrow points.