Don't understand what you mean.That was written to mean you can use your stones endurance as a raction, any time you can use a reaction.![]()
Have you done any analysis if this is balanced? I mean, I'm the first to recognize how beast forms lose their appeal in the high single-digit levels, but a blanket green light on all monstrosities...? (Besides, isn't the Summer Court related to fey more than "magical beasts"?)

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.