Draw a card.
Psychosis Crawler triggers, causing each opponent to lose 1 life.
Kefka triggers, causing you to draw a card.
Repeat from step 2.

Infinite card draw

Near-infinite lifeloss

Infinite draw triggers

Kefka, Court Mage // Kefka, Ruler of Ruin

Psychosis Crawler

Draw a card.
Niv-Mizzet triggers, dealing 1 damage to an opponent.
Kefka triggers, causing you to draw a card.
Repeat from step 2.

Near-infinite damage

Niv-Mizzet, Parun

Proceed to your cleanup step, causing you to discard down to your maximum hand size.
Magmakin Artillerist triggers for each card discarded this way.
Resolve the first Magmakin Artillerist trigger, dealing damage to each opponent.
Kefka triggers, causing you to draw a card for each opponent that lost life.
Repeat from step 3 as needed for all remaining Magmakin Artillerist triggers.
Once all players have passed priority and the stack is empty, you will still be in your cleanup step, and will discard down to your maximum hand size.
Repeat from step 2.

Infinite self-discard triggers

Infinite rummaging

Magmakin Artillerist

Proceed to your cleanup step, causing you to discard down to your maximum hand size.
Glint-Horn Buccaneer triggers for each card discarded this way.
Resolve the first Glint-Horn Buccaneer trigger, dealing 1 damage to each opponent.
Kefka triggers, causing you to draw a card for each opponent that lost life.
Repeat from step 3 as needed for all remaining Glint-Horn Buccaneer triggers.
Once all players have passed priority and the stack is empty, you will still be in your cleanup step, and will discard down to your maximum hand size.
Repeat from step 2.

Glint-Horn Buccaneer

Proceed to your cleanup step, causing you to discard down to your maximum hand size.
Feast of Sanity triggers for each card discarded this way.
Resolve the first Feast of Sanity trigger, dealing 1 damage to an opponent and causing you to gain 1 life.
Kefka triggers, causing you to draw a card.
Repeat from step 3 as needed for all remaining Feast of Sanity triggers.
Once all players have passed priority and the stack is empty, you will still be in your cleanup step, and will discard down to your maximum hand size.
Repeat from step 2.

Near-infinite lifegain

Near-infinite lifegain triggers

Feast of Sanity

Draw a card.
Starving Revenant triggers, causing you to gain 1 life and an opponent to lose 1 life.
Kefka triggers, causing you to draw a card.
Repeat from step 2.

Starving Revenant

Draw a card.
Queza triggers, causing you to gain 1 life and an opponent to lose 1 life.
Kefka triggers, causing you to draw a card.
Repeat from step 2.

Combos with "Kefka, Court Mage // Kefka, Ruler of Ruin"