Karador, Ghost Chieftain + Slick Imitator + Narset's Reversal + Part the Waterveil

Karador, Ghost Chieftain

Slick Imitator

Narset's Reversal

Part the Waterveil

How it works

1. Cast Part the Waterveil by paying its mana cost.
2. Holding priority, cast Narset's Reversal by paying , targeting Part the Waterveil.
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 Part the Waterveil, and returning the original Narset's Reversal to your hand.
5. Resolve Part the Waterveil, causing you to take an extra turn after this one.
6. Cast Slick Imitator from your graveyard by paying 1.
7. Repeat each turn.