I'd like a troll hag/shaman enchanter who is affiliated with Trundle and Lissandra in the lore. She/he could specialize in debuffing opponents, which could be a theme for trolls like Trundle's Q and R, and create buff areas of effect for allies to fight in, like Trundle has his W for himself.
She/he could be immobile and melee, but very beefy for an enchanter (secondary fighter).
P: Can collect herbs that spawn around in bushes around the map. Each bush has a unique cooldown after harvesting herbs from them. [Encourages roaming]
When a unit dies nearby, they drop collectible souls (extra souls from big monsters/minions, champions and epic monsters) [This is similar to Thresh, but he/she uses the souls as ability resources instead of collecting them for stats.]
Q - Strike with a sacrificial dagger, dealing damage and marking the enemy unit hit. If an enemy dies while marked, their soul is consumed immediately, creating a ritual area of effect where they died. The strength and size of the ritual depends on how many souls the marked unit would have dropped. Allies entering the ritual area gain a shield (scaling with your health and AP), and heal for a small percentage of damage they deal while shielded. Enemies in the ritual area are slightly slowed and take a small amount of damage over time. [The cooldown would be similar to
to allow synergy with the item while supporting. This would be an autoattack reset. Your lane ally should learn to trade damage with opponents during rituals.]
W - Place a cauldron at a location, lasting up to 120 seconds at max rank. You can interact with the cauldron to select a brewing option and channel (stir) the cauldron, consuming herbs to greatly increase the rate at which the cauldron produces charges. [Charges appear as flasks that 'pop' out of the cauldron and drop to the ground around it. Allies clicking on the cauldron or clicking/walking on the flasks will consume them. You can visit a lane, drop a cauldron and channel it for a while to leave a teammate tasty buffs, similar to a Bard leaving satchels.]
- Brewing Options:
(red) Rejuvenating Potion: allies may consume charges from the cauldron to restore health and mana over time.
(purple) Paralyzing Potion: allies may consume charges from the cauldron to poison their next attack to deal damage over time and reduce the opponent's Attack Damage and Attack Speed.
(black): produces ghouls/wraiths; channeling consumes collected souls rather than herbs to increase spawn rate; if units die nearby, their souls are automatically collected by the black cauldron to spawn ghouls/wraiths. [Unlike the other brewing options, this is more like a
item. It is a reference to "The Black Cauldron" which is based on Welsh mythology.]
E -
Ally/Self Cast: (consumes herbs) begin chanting while burning maddening incense, driving yourself and allies within the incense smoke radius into a fanatical rage. While berserking, gain ramping up bonuses: movement speed, tenacity, and reduced damage.
Enemy Cast: (consumes souls) begin chanting and conjure frost-wraiths that pursue nearby enemies, dealing magic damage and slowing them. The fourth/last wraith released will fear enemies caught by it.
R - Passive: This ability can be recasted while on cooldown to consume a number of stored souls to reduce the remaining cooldown of this ability. [Very long cooldown otherwise.]
Ally Cast: Bind your soul to an ally for a duration. While bound, a small amount of your stats are shared with one another. If the ally would take lethal damage while the binding is in effect, the binding is consumed to reduce the damage and then a large amount of health is transferred from you to the ally (will leave you with a minimum amount of health).
Enemy Cast: Bind souls with an opponent for a duration. While bound, you steal a small amount of stats from your opponent. If you would take lethal damage while the binding is in effect, the binding is consumed to reduce the incoming damage and steal a large amount of health from the opponent.
I think this kit would work best as support but could also jungle depending on clearing speed. The lack of mobility would make ganks a bit weak, but you would be able to leave potions for your allies to help them, or place a black cauldron to hold/split-push a lane. Solo laning might be possible, but it's hard to imagine with so much power budget in utility to buff an ally. She/he could be an okay duelist, but others are just as good at dueling and have more mobility/range, and a full juggernaut would almost always be better at dueling.