Ogre Slumlord Combos
Hell's Caretaker + Teardrop Kami + Ogre Slumlord
Horobi, Death's Wail + Ogre Slumlord + Shadow Alley Denizen
Combo result
Destroy any number of nontoken creatures whenever a black creature enters the battlefield under your control. Destroy any number of nontoken creatures whenever a creature dies.
Prerequisites
All permanents on the battlefield. You have a way to put a black creature onto the battlefield under your control.
Nim Deathmantle + Ashnod's Altar + Ogre Slumlord
The Balrog, Durin's Bane + Phyrexian Altar + Ogre Slumlord
Combo result
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count. Infinite commander casts.
Prerequisites
The Balrog in the command zone. All other permanents on the battlefield. There have been a number of permanents sacrificed this turn equal to five plus The Balrog's commander tax. {B}{R} available.