Mages, skirmishers, and tanks have all been tweaked to have less dramatic variation. In general, mages will have less damage and more health, while tanks will have less health and more damage. This means the average fight length and amount of incoming damage will be more balanced, while retaining the thematic differences between monster types.
All mage monsters now have more health, and output less damage.
All tank monsters now have high spell and physical resistance.
All mages now have low physical resistance, but high spell resistance.
All skirmishers now have average physical and spell resistance.
On average, delve bosses now have more health.
"To those who fell in love with you! For they have sacrificed so much for so little!"