[@A Lowly Wretch]
Nettle is approved! Nice job!

[@RoflsMazoy]
Come on in...imma pack this RP full! XD

[@Hammerman]
I like her...Esther is approved!

And the summons are conjured by magical energy and are held by both the energy and the mind link (which are pretty much connected). Think of the summons having an invisible tendril attaching them to the invoker. The bond can weaken and strengthen based on energy level and/or mental state.