let me help you out here
Idea: i think there should be a necromancer that is mad at Yorick for abusing the dead spirits,
(i think this is a nice story maybe call him "Reclaimer" of some sorts)
Spirit well (Passive): he gains power from spirits stored in his well and it changes his abilities and stats based on how much stacks he has.
can have up to 50 stacks, spirits don't decay but reset upon death. each stack gives 2% bonus stats to champion.
Minion/monster he give 1 spirit, Epic monsters give 3 spirit and champions give 5 spirit. Spirits do not decay and lose 1/2 stacks upon death.
Champion uses mana.
Q - Casts on a single target, draining thier HP per second, giving it to the champion if the unit dies nercromancer will receive X2 spirits.
W - Champion picks between A Vengeful spirit/beast spirit/cursed spirit to assist him in battle. (like Twisted fate 3 cards)
Sacrifices 2 spirit stack when cast.
Vengeful spirit: will go after who hurts the necromancer first. (defensive like minions, locks on to the first attacking target, maybe ranged)
Beast spirit: can be controlled and targets who ever with his w or alt key. (a mini tibber's can be killed)
Cursed spirit: Goes for whoever is closest but doesn't lock on. (defensive like minions, maybe melee)
E - Creates a spirit clone of a target, When cast on an allied champion, creates 2 spirit clones that deals reduced damage and has half of actual HP.
When cast on an enemy champion they are slowed and silenced for 4 seconds.
Sacrifices 2 spirit stacks when cast.
R (Changed it to synergies with his passive and abilities): Toggle on
Champion releases all his stored spirits, creating a spirit storm around the necromancer.
Each spirit stacks deal AP damage and Heal the necromancer. then disappears.(imagine Diana's Pale Cascade but each stack is a sphere )
Enemies hit are slowed while within the storm. Enemies slain add to the storms stacks.
Storm ends when there is no more spirit stacks or when turned off.
When turned off, returns the stacks to the necromancer.
Hope this helps you with your concept.
Feel free to check out my concepts from my profile or comments. Opinions and feedback much appreciated.
[slayer-pantheon-thumbs]