Tether Essence

7th-Level Necromancy
Casting Time: 1 action
Range: 60 feet
Components: VSM($) (a spool of platinum cord worth at least 250 gp, which the spell consumes)
Duration: (C) 1 hour

As in Explorer's Guide to Wildemount with the following added:

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, you may target an additional creature for each slot level above 7th.

Source: EGW 189

Changelog

Added upcasting option.