I know it’s a long shot for you to see this, but what’s your take on magical immunity for a bbg and how it effects the enjoyment level of an encounter? It depends on the party make-up, but if there are some magic-dependent characters, consider elements of the battlefield that could be used to either dampen the immunity, or ways the environment could be effected by magic to hurt/hinder it. Telegraph them well enough.
— Matthew Mercer (@matthewmercer) February 19, 2019
Otherwise, you do run the risk of making it a frustrating (in a bad way) fight for those players.
— Matthew Mercer (@matthewmercer) February 19, 2019