Disclaimer: This suggestion wasn't made by me, I'm posting it on behalf of a friend!
Don’t you all find it odd how the near-haradrim (or the “near-southrons”) praise serpents to the point of having them inserted on their banners? What could it represent? That serpents are religiously venerated? That the Near-Haradrim consider themselves to be as agile, cunning, and lethal as snakes? Nonetheless it may be safe to assume they have came in contact with those reptiles, otherwise it would be impossible to portray them anywhere.
My suggestion is to extend Near-Harad’s Lore via their relation to their snakes (I’d leave the RP part to the Lore Group of the Wikia since my priority is to have this actually in the mod).
Also known as cobras, snakes –whatever. Those little venomous animals would have over 15HP (but no armour resistance), and inject a special poison to the victim who received a bite (Poison + a Nausea, since being bite by a poisonous snake should seriously make you feel extremely ill).
Their AI would also be quite diferente: they’d only attack when provoked (when you get really close or hit them). Once engaged in combat the serpents would slide arround their target in a circle, readying for lunging at them with their fangs.
1.5 Serpent Poison, Fangs and Scales
Serpents would drop their scales, aside from their fangs each would still have some poison that could be extracted and utilized. Another way to get the poison would be “milking” them like Scorpions and Spiders.
2- Valley Of The Serpents
This biome would be located inside a complex of mesa hills (like the vanilla MC’s biome), where several serpents could be found in abundance. Legend has it that certain Haradrim Warriors travel there to prove themselves worthy..
3- Serpent Warriors
I know that NH will eventually be able to ride Mumakil but... they are not the only ones. The Tauredain technically seem to be the ones who truly “own” those beasts, therefore Near-Harad needs something unique to form an elite corps.
Foremost I had always been bothered by how this supposedly “Might Of The South” could easily be beaten by other of Harad’s factions, the Half-Trolls (their homeland biome is vast and albeit they are taken as rudimentar, their crafts actually rival NH’s in weaponry and armour – but once more, the half-trolls are MUCH stronger physically). The Half Trolls would ransack Near-Harad, and perhaps could even ride oliphants themselves!
So my idea is to have this elite unit be the equivalent of the Golden Easterlings. The Serpent Warriors would have 25HP (HP typically given by enhanced men without any ties with elves), Iron Level armour (crafted by Steel, which craft recipe was learned/stolen by the Haradrim when the Númenóreans settled at Umbar) and a special weapon: The Poisoned Scimitar.
Steel would be the new ingot introduced to the mod, simply crafted by mixing coal and iron in an alloy forge. For once perhaps the armors of Gondor could be made out of this metal instead of the old vanilla iron.
5- The Poisoned Scimitar
In short it’d be the blade of the serpent warriors crafted with via the introduction of the serpent poison to either the standard Haradrim Scimitar, or a Haradrim scimitar made out of steel. It’d inflict Poison (perhaps a few tickets less than that of the poisoned daggers) and Nausea (just about enough tickets to make the enemy player to loose a bit of his own balance, but nothing Strong and long lasting).
6- Poison Immunity
The Haradrim thanks to their long story and contact with the serpents and scorpions should’ve by now mastared some form of medicine (maybe the use of specific herbs) to prevent the effects of poison from being harmful (or at least from being terminal). Hence why I suggest the addition of a Haradrim Brew or Item that can give one Immunity to Poison temporaly, but utterly I was unsure what item would properly fit.
7- Serpent Warrior armour
Craft with Steel on the Haradrim Crafting Table, it’d be as Strong as Iron. It’d have a dark colour ressembling past Haradrim armour textures, and would be addorned by dark red pieces of cloth, with the helmet ressembling the standard armour set’s.
Note 1: The Nausea effect of the serpent poison could simply not be, instead all those NPCs and Items would deal only the standard poison effect.
Note 2: Textures Needed :)