Martin Pulido's design sheet for the Seeds of Chaos heroes, race by race, with each ability marked as finished or still in progress.
Humans: the Blood Mage was dropped because he didn't fit the story. The Arch Mage got Meteor Swarm, a Teleportation Circle and a Time Stop ultimate. The Paladin traded his usual kit for Sermon (damages undead, slowly heals allies), Resurrection and an angel summon. The Mountain King's Avatar gained levels (more health, then chaos damage, then spell immunity), and his ultimate could summon a small gold mine. A new Crusader and a Ranger with Rapid Shot and Black Arrow completed the roster.
Undead: the Crypt Lord was moved to the campaigns. A strength-based Abomination with a chain-pull Snatch and an Insect Plague ultimate was added, along with a Lich ultimate called Glacier and a Necromancer who raises skeletons.
Many of these ideas were later reworked in the separate Spells Status thread.