The Rod of the Pact Keeper(+1) increases my Warlock’s spell save DC by 1. With an 18 Charisma at level 8 my spell save DC is 16. (8+3+4+1)
I just received a Ring of Shooting Stars. 🍺👍 The ball lightning feature, and the shooting stars feature, require a DC 15 Dexterity save to avoid lightning or fire damage respectively. For both features, the same text is used.
That creature must make a DC 15 Dexterity saving throw.
Since my Warlock is attuned to the Rod of the Pact Keeper(+1), do they now have to make a DC 16 Dexterity saving throw to avoid the lightning or fire effects, or, is the DC 15 fixed and non-modifiable?
(A related question on the RoSS’s effects like faerie fire is not the same as this one).