The book contains a pretty good Minor Race Transformation in the form of Astral Blood along with two equally good enchantment spells. The Tome of Amplification is a Tier 2 Astral affinity Tome that offers a little bit of everything.

Spawnkin continues to be valuable throughout the game, though. The Tome of the Horde is easily one of the best early-game books, but quickly starts to lose its value once you reach the mid-game. That’s in addition to the 20% they’re already getting from Spawnkin. Meanwhile, the Battle Seeker Training Support hero skill allows Rulers and Heroes to boost the damage of Tier 1 units by 20%.

The Mob Camp isn’t the best special province improvement in terms of its yields, but it does make Tier 1 units even cheaper than normal. Spells aside, the Tome of the Horde also provides some decent initial bonuses. If you’re looking to bolster your forces with even more token units, you can always count on Summon Irregulars.

Other spells like Fury of the Horde and Blaze of the Horde allow you to make the most out of your Tier 1 units while the Houndmaster gives you a freebie Tier 1 unit at the start of each battle. The main highlight here is Spawnkin, a Minor Race Transformation that grants units a 20% damage increase. The Tome of the Horde is a Tier 1 Chaos affinity Tome centered around turning weak token units into a powerful fighting force.

Age of wonders 4 race transformations