Howdy, this is Kamani.
Nekarcos made this incredible addon, but was inactive for quite a bit, only having recently returned (recently as of 5/29/2023). I just wanted to play on the most recent version of ToME when I played it, so this is just a port of OotS to ToME 1.7.4. I will NOT be adding new content, and all credit goes to Nekarcos, who actually made this. If you find any bugs, please report them to me.

The current page for OotS content is: https://forums.te4.org/viewtopic.php?p=247326#p247326
And the original TE4 page for older OotS is here: https://te4.org/games/addons/tome/neka_therianthropy_summoner

I mostly tested OotS with EoR, Cults, and Ashes enabled, but it should work fine without them.
Anyways, here is the original description:
This is a highly extensive "unofficial DLC" that takes the summonable creatures from the Summoner class and turns them into fully-talented, highly-comprehensive classes with their story and unique events.
This pack features the ranged summons: Hydra, Fire Drake, and Flamespitter Ritch.

Disclaimer: This is NOT a full release. There WILL be errors and unpredictable behavior. I am patching things out actively, so play with discretion and send as much feedback as possible to the forum thread to accelerate the completion process!
Details:
This modifies the "Age of Ascendency" story, as you are no longer human, but rather, a natural, spiritual being. This means several conversations and services may become unavailable or even change to behave in new ways.
The plot's progression is mostly unchanged, but now you are operating under the command of an ominous individual known only as "The Summoner". He sends you off to do tasks-- But in the end, it is up to you to decide whether you will work cooperatively with him or not.
This was a labour of love, and I would want nothing more than for you to enjoy a new flavor of experience-- And a new type of challenge and difficulty in Tales of Maj'Eyal.
Please, enjoy!

Expanded Details:
"Hydra is a nigh-indestructible damage sponge that doles out as much as it takes, capable of attacking several times and several targets per turn. It possesses Feral, Glare, and Drool heads, each respectively associated with its Physical, Mental, and Magical wellbeing. You can choose whether you want to bite, stare, or spew your enemies to death-- Or maybe even some combination of such!"
"Fire Drake is a dedicated pet general, leading a batch of child fire dragons called 'Drakelings'. They are capable of growing and learning many of your talents-- But you must choose whether you will dedicate yourself to nurturing them, or making yourself powerful enough to protect them from the dangers of Eyal. Cooperation and good education is the key to success!"
"Ritch is a fullblown assassin, possessing a variety of techniques that want nothing more than for its victims to bleed, burn, and die to death-- And not necessarily in that order. Most significantly, they can craft and engraft bladed weapons to replace their claws, making them the most efficient Avatar class that can utilize human weaponry. Killing is a skill, and you're good at it!"
"War Hound is an agile skirmisher that sacrifices little to attain maximum damage. Performing a large number of attacks per turn, as well as having a variety of mobility talents, there is no distance that can keep this fighter out of combat. Alternatively, use your powerful tracking skills to always be aware of your enemies. Run circles around them, hunt them down-- Either way, your bite hurts!"
"Minotaur is a powerhouse with many humanoid qualities, invoking both nature and craftsmanship to annihilate anything in its way. Using its rugged strength to crush enemies, utilizing its cunning of the civilized world, or even tapping into its mystical gifts, this fighter can always find a way to put its hoof into your behind. Brute force is ALWAYS the answer!"