also, some unique technologies i was considering but didn’t use (for my Tamil civ) in case you had a civ that could incorporate them, i might use them in the future though
spiked walls: historically elephants were used as siege, however kings picked up on this and added spikes to the front of their gates to hurt the elephants, this unique tech makes gates, and also walls since gates can easily be avoided, kind of like melee towers with an attack bonus against cavalry and even more against elephants, however they are still weak to rams
and tree catapult: historically Cholas sometimes put boulders or something on trees and bent the trees down before releasing the tree and chucking the volley at the enemy, i don’t know what this would do but it would probably affect the magonel and onager line or give things similar to cannons to a castle
also dont use my names when making a civ with these since my names were literal, maybe translate them.
you can if you want to though