Tempo save DC = 8 + your proficiency bonus + your Wisdom modifier
Spell attack modifer = your proficiency bonus + your Wisdom modifier
Students of the Diamond Mind discipline are renowned for their ability to remain calm in even the most dire of situations. Combat is an equation to be solved, and it is the practice of the Diamond Mind to understand all of its elements. This view lends itself to a prescient combat style, where the practioner appears able to act in impossibly short spans of time.