New damage hero: MAGE — the Blade was renamed (the art was always a mage). Level, skills and gear migrate automatically, nothing is lost.
5 new tree skills — Chain Shock (Mage Q: a bolt jumping across 5 enemies), Stone Wall (Bulwark E: a wall that blocks horde and projectiles), Well of Light (Oracle E: a circle healing 2/s), Celestial Dome (Bulwark R: drop from the sky, stun and raise an impenetrable dome) and Mercy (Oracle R: postpone all damage on an ally — the debt never kills).
Skills on cooldown turn black and white — color returning means ready again.