When you hit a creature with your Bladecasting weapon, you can expend a rune from it to inflict a powerful transmutation effect according to your Bladecasting's type:
When a Spellstrike requires a saving throw, use your {CLASSNAME} spell save DC (see below). A creature that is immune to a damage type is immune to that Spellstrike effect.
Intelligence is your spellcasting ability for your {CLASSNAME} spells, since their power derives from your study and precise focus. You use your Intelligence whenever a spell refers to your spellcasting ability. In addition, you use your Intelligence modifier when setting the saving throw DC or when making an attack roll for a {CLASSNAME} spell.
* {CLASSNAME} Spell, see below.