Karador, Ghost Chieftain + Slick Imitator + Narset's Reversal + Walk the Aeons

Karador, Ghost Chieftain

Slick Imitator

Narset's Reversal

Walk the Aeons

How it works

1. Cast Walk the Aeons by paying its mana cost.
2. Holding priority, cast Narset's Reversal by paying , targeting Walk the Aeons.
3. Holding priority, activate Slick Imitator by paying 1 and sacrificing it, copying Narset's Reversal, with the copy targeting the original Narset's Reversal.
4. Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Walk the Aeons, and returning the original Narset's Reversal to your hand.
5. Resolve Walk the Aeons, causing you to take an extra turn after this one.
6. Cast Slick Imitator from your graveyard by paying 1.
7. Repeat each turn.