Current Outline

Manasteel

• Grants mending (not mana repair) that's way way less efficient than the actual enchantment (Arcane)
• about iron stats

Terrasteel

• Cool properties with every type of tool
• Mining tools - Axe of the Stream effect (Worldforged)
• Weapons - Chance to force the hit entity to the ground and slow for a short time, costs mana (Worldforged)
• Other - 50% chance to not take the final 5 durability points but it's weaker during them (Unyielding)
• Upwards of iron, but not amazing stats

Elementium

• Weapons - Chance of pixies which go in a line from the player to where they hit, no homing, requires mana (Elsetouched)
• Mining tools - void trashy things / do lines of gravel (Elsetouched)
• Other - Every time it's repaired from fully broken, its durability increases slightly. (Alfwrought)
• Same stats as Manasteel

Livingwood

• About wood stats, provides less durability
• Wood's modifiers, except it selfrepairs faster

Dreamwood

• Same stats as livingwood
• Weapons - More damage the more health the hit entity has (Idealistic)
• Mining tools - takes less time to mine the harder the block is to break, more time the easier (Idealistic)
• Other - Slightly better stats under the stars (Stargazer)

Livingrock

• About stone's stats, worse durability
• Main part - stats change based on the environment. Higher up is higher knockback, lower down is faster for mining. Hotter environments are more damage, and colder environments are slowing to anything hit. (Elemental)
• Additional parts - Takes less damage the lower the durability is, to a maximum unbreaking chance of 3 (Enduring)

Manasteel

• not sure about this one..why would manasteel now entail mending? :P

Terrasteel

• what do you mean by no gravity?

Elementium

• everything except the tools needs to cost mana

livingwood

• fine

Dreamwood

• what use does healing instead of harming give you other than a REALLY cheap bypass to potions for healing other things
• what's the point of the mining speed

Livingrock

• Purification: no, you know someone's going to set up one of these to autobash stuff instead of automating a pure daisy properly

I refined the ideas, take another look?

I actually coded (and balanced) a test version over on yrsegal/Botania/MC19. If you have no complaints with it, I can go ahead and PR it.

It's been tested to not crash serverside and to not crash when Tinkers is not present.