All 16 Combos with Kokusho, the Evening Star

Kokusho, the Evening Star + Mikaeus, the Unhallowed + Yawgmoth, Thran Physician

Infinite Draw: Infinite card draw, Near-infinite lifegain, Near-infinite lifeloss, Near-infinite lifegain triggers, Near-infinite ETB, Near-infinite LTB, Near-infinite death triggers, Near-infinite sacrifice triggers

Activate Yawgmoth by paying 1 life and sacrificing Kokusho, targeting any other nontoken non-Human creature you control with toughness two or greater. Kokusho dies, triggering it and its undying ability. Resolve Kokusho's undying trigger, returning it from the graveyard to the battlefield with a +1/+1 counter. Resolve Kokusho's trigger, causing each opponent to lose 5 life, and causing you to gain life equal to the life lost this way. Resolve the Yawgmoth ability from step 1, putting a -1/-1 counter on the additional creature and causing you to draw a card. Activate Yawgmoth by paying 1 life and sacrificing the additional creature, targeting Kokusho. The creature dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it. Resolve the Yawgmoth ability, putting a -1/-1 counter on Kokusho and causing you to draw a card. Repeat.