Activate Koh by paying 1 life, causing it to gain Asmodeus's activated and triggered abilities.
Activate Koh by paying {B}{B}{B}, causing you to draw seven cards.
Activate Skirge Familiar three times by discarding three cards, adding {B}{B}{B}.
Repeat from step 2.

Infinite self-discard triggers

Infinite draw triggers

Near-infinite black mana

Near-infinite card draw

Near-infinite looting

Koh, the Face Stealer

Asmodeus the Archfiend

Skirge Familiar

Activate Koh by paying 1 life, causing it to gain Port Razer's triggered and activated abilities.
Deal combat damage using Koh, triggering Koh, causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat step 2 each combat phase.

Infinite combat phases

Infinite untap of creatures you control

Infinite mana creatures you control can produce

Infinite combat damage

Port Razer

Activate Koh by paying 1 life, causing it to gain Bloodthirster's triggered and activated abilities.
Deal combat damage using Koh, triggering Koh, causing you to untap it and to get an additional combat phase after this one.
Repeat step 2 each combat phase.

Bloodthirster

Activate Koh by paying 1 life, causing it to gain Medomai's activated and triggered abilities.
Deal combat damage using Koh, triggering Koh, causing you to take an extra turn after this one.
Repeat step 2 each turn.

Infinite turns

Medomai the Ageless

Activate Koh by paying 1 life, causing it to gain Asmodeus's activated and triggered abilities.
Activate Koh by paying {B}{B}{B}, causing you to draw seven cards.
Activate a permanent by tapping it, adding at least {B}.
Activate Mind Over Matter by discarding a card, untapping the mana-producing permanent.
Repeat from step 3 until you have {B}{B}{B} available.
Repeat from step 2.

Mind Over Matter

Cast Eternal Scourge from exile by paying {3}.
Appa's second ability triggers, creating a 1/1 Ally creature token.
Activate Ashnod's Altar twice by sacrificing Eternal Scourge and the Ally, adding {C}{C}{C}{C}.
When Eternal Scourge dies, Koh triggers, exiling Eternal Scourge.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite colorless mana

Infinite storm count

Infinite creature tokens

Appa, Steadfast Guardian

Eternal Scourge

Ashnod's Altar

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
When Eternal Scourge dies, Koh triggers, exiling Eternal Scourge.
Cast Eternal Scourge from exile by paying {3}.
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Ashnod's Altar twice by sacrificing the Alien Warrior and Eternal Scourge, adding {C}{C}{C}{C}.
Repeat from step 2.

Iraxxa, Empress of Mars

Activate Koh by paying 1 life.
Vilis triggers, causing you to draw a card.
Sheoldred's first ability triggers, causing you to gain 2 life.
Repeat as desired.
Resolve all Koh abilities.

Infinite card draw

Near-infinite lifegain

Near-infinite lifegain triggers

Sheoldred, the Apocalypse

Vilis, Broker of Blood

Activate Koh by paying 1 life.
Repeat step 1 until you have 0 life.
Resolve all Koh abilities.
Cast Repay in Kind by paying {5}{B}{B}, causing each opponent's life total to become 0.
Each opponent loses the game as a state-based action due to having 0 life.

Each opponent loses the game

Near-infinite lifeloss for all players

Permanent with "You don't lose the game due to having 0 or less life"

Repay in Kind

Activate Koh by paying 1 life.
Repeat step 1 until Greven has power 21 or greater due to its first ability.
Deal combat damage to an opponent using Greven. The opponent loses the game due to being dealt 21 or more combat damage from your commander.

Target opponent loses the game

Greven, Predator Captain

Activate Vizkopa Guildmage's second ability by paying {1}{W}{B}, causing each opponent to lose life whenever you gain life this turn.
Activate Koh by paying 1 life.
Repeat step 2 until you have 1 life.
Activate Children of Korils by sacrificing it, causing you to gain life equal to the amount of life you've lost this turn.
Vizkopa Guildmage triggers, causing each opponent to lose life equal to the amount of life you gained.

Combos with "Koh, the Face Stealer"