To be honest, this mod is INCREDIBLY unbalanced. Yes, the summoning table is slightly expensive but once you have it, it's too easy to get mobs. With 64 spawns of the mob, you will get more than you spent on the summoning book. I think the book should cost a stack of the item to make it more balanced, with chicken and endermen only having 16 spawns per book.
I agree, and disagree. It may be a bit unbalanced for now, but I also think that depends on the environment you're running the mod in. On the other hand, I do plan on implementing multiple tier tables, which would give you progressively more spawns per book (probably 8-16-32-64). While I see why you suggest using full stacks of items, I have to disagree with that. If you already have a full stack of leather, you probably already have a decent farm (note: probably). I will take you thoughts into account while working on future versions!
So? Doesn't change the fact that it's unbalanced for three users (Me included), and we are allowed to have Opinions.
Opinions are a double edged sword mate While I'm grateful for them, as opinions == feedback (good || bad :P) will help me shape the mod in the future. Others don't like you giving opinions if they don't match yours Thanks for the feedback!
You basically took what I was about to say straight out of my mouth.
Not only that, this mod is pretty primitive and actually kind of boring. Other mods have done the job better and without the gimmicks that this mod has. Heck, one mod even lets you create your own mob like a Squid-Witch abomination. If this mod had more features, I'd love it. But the other mods are just better than it at the moment.
Something that could improve this mod would be giving the mobs more powers and strengths. Like a Hostile Mooshroom that's surrounded in Charged Creeper Aura, shoots Ghast Fireballs, lightning, can fly, attacks all mobs other than Mooshrooms, deals 3 hearts of damage when you touch it, and spawns weaker Baby variants of itself.
If this mod would let you do that, it would be the best thing ever.
The thing is, my mod does not aim to give mobs more powers. My mod simply aims to give the player the ability to spawn them as-needed. See my previous reply to another user about the current balance issues. Thank you very much for the feedback though It will help shape things in the future!