##The Spell save DC would include the proficiency bonus.

Player Handbook (p.205)

The DC to resist one of your spells equals 8 + your spellcasting ability modifier + your proficiency bonus + any special modifiers

A special modifier would be a bonus from a magic item for example.

The Spell save DC would include the proficiency bonus.

Player Handbook (p.205)

The DC to resist one of your spells equals 8 + your spellcasting ability modifier + your proficiency bonus + any special modifiers

A special modifier would be a bonus from a magic item for example.

###The Spell Save DC would include the proficiency bonus.

Player Handbook (p.205)

The DC to resist one of your spells equals 8 + your spellcasting ability modifier + your proficiency bonus + any special modifiers

A special modifier would be a bonus from a magic item for example.

##The Spell save DC would include the proficiency bonus.

Player Handbook (p.205)

The DC to resist one of your spells equals 8 + your spellcasting ability modifier + your proficiency bonus + any special modifiers

A special modifier would be a bonus from a magic item for example.