Activate Slogurk by removing three +1/+1 counters from it, returning it from the battlefield to your hand.
When Slogurk leaves the battlefield, it triggers, returning three land cards from your graveyard to your hand.
Cast Slogurk by paying E due to Primal Prayers.
When Slogurk enters, Guide of Souls triggers, causing you to get E and gain 1 life.
Repeat.
This crafty loop turns the graveyard into a revolving door by cycling land cards away with Aeromoeba's activation, which immediately feeds +1/+1 counters to Slogurk, the Overslime. Once Slogurk has grown large enough, you can cash in those counters to bounce it back to your hand, triggering its departure clause to scoop those discarded lands right back into your hand. That fuels a continuous cycle where Primal Prayers steps in to let you recast Slogurk for a bargain price in energy, while Guide of Souls sits by to farm endless life and energy every time Slogurk re-enters the battlefield.