Karador the Ghost with the Mostest (EDH / Commander)

Value creation by sacrificing your own creatures and causing your opponents to sacrifice theirs.
Draw through playing enchantments with one of the three enchantresses'
Remember Karador can only get one creature on your turn.

Sac Outlets: high market, ashnod's altar, Ayli, disciple of bolas, Diabolic Intent, altar of bone, Victimize
Enlightened Tutor for Ashnod's altar, dictate of erebos, pattern of rebirth
Demonic Tutor for Academy Rector, or combo creature

The easiest way to set it up is [[Academy Rector]] + infinite sac outlet + any creature. Here is what to do :

Sacrifice Academy Rector, get Pattern of Rebirth, enchant the 3rd creature. Sacrifice this 3rd creature, Pattern triggers, get Boonweaver Giant that gets back Pattern. Sacrifice the Giant, get [[Karmic Guide]], get back the Giant (and Pattern). Sacrifice the Giant, get [[Reveillark]]. Sacrifice Karmic Guide. Sacrifice Reveillark, get back Karmic Guide. Get back the Giant with Karmic. Sacrifice the Giant, get [[Fiend Hunter]]. Exile Karmic Guide. Saacrifice Fiend Hunter, Karmic comes back into play, get back Reveillark.

From here you have the classic Reveillark + Karmic Guide loop that will get you infinite triggers of the creatures with 2 or less power in your graveyard. You can have infinite triggers of Fiend Hunter which you can use to exile the Karmic Guide every time and get infinite Karmic Guide triggers, which means you can get back Giant and trigger pattern any number of time and get all the creatures in your deck into play, triggers them an infinite number of time. You cannot always kill your opponent on the very turn you combo off, but you will leave them with no hand, no permanent and no graveyard and you being at infinite life with an infinitely large creature on the board, which should be good enough.

Win Conditions:
1) Blood Artist via repeated sacrificing
2) Exsanguinate after repeated sacrificing into Ashnod's alter
3) Boonweaver Giant combo using Pattern of Rebirth, Animate Dead can get out a lot of creatures