Yorick rework, and some ideas to throw into the mix. "Hordemaster"
I know you guys have one planned, so I am just throwing out some ideas
Passive Horde Upon killing a unit, yorick resurrects it to follow him. This unit has half its original Health and Attack damage, and can be directed by Yorick if he holds Alt. The ghoul's health decays at a rate of 2% per second, but have 25% of their missing hp restored upon Yorick killing another unit.
Ghouls cannot damage towers.
Yorick deals 1% more damage and takes 1% less damage per ghoul active within 1000 range of him, up to 30%.
Q Omen of War Yorrick Summons 4 spectral ghouls to his side. These ghouls deal 10% more damage per other ghoul near them, max 40%. They shred armor with basic attacks, and grant Yorick and his ghouls movement speed towards champions.
W Omen of Pestilance Yorick Summons a decaying ghoul at a target location. This ghoul slows units around it, shreds magic resist with basic attacks, and causes other nearby ghouls to apply a poison to their basic attacks.
E Omen of Famine Yorick summons a ravenous ghoul on a target unit. This ghoul heals yorick for 25% of the damage it deals, as well as lowering the decay rates of other nearby ghouls to 1% health per second as long as it is active. R Mausoleum 30 second cool down, available at level 1 (like Karmas ult) Yorick constructs a Mausoleum. Mausoleums spawn 1 ghoul every 4/3/2/1 seconds, each ghoul lasting 30 seconds. If Yorick is near the Mausoleum, the ghouls are empowered. Should an ally right click on a Mausoleum, they link themselves to it. Allies linked to Mausoleums Will "Revive" for 15 seconds upon death. Allies who are "Revived" Will legitimately be resurrected if they can kill the champion, monster, or turret that killed them. Yorick may have up to three Mausoleums on the map at a given time, and they last until they are destroyed, Yorrick places a 4th, or until an ally is resurrected from it. Mausoleums may not be placed within 2000 units of eachother. If ghouls are more than 1000 range from Yorick, he cannot control them with alt.
These are meant to be something between Zz'rot portals pushing and providing little goons, and Heimer turrets controling an area.
The idea is to make the Gravedigger the leader of an endless Hoard, that will quickly overwhelm you if you do not keep an eye on him.
Also, Riot, how far are you into yoricks rework? Just concepts right now?