Taigam, Master Oppurtunist, Clockspinning, and Alrund's Epiphany

Prerequisites

• Taigam, Master Oppurtunist on the battlefield
• Clockspinning in hand
• Alrund's Epiphany in hand
• the first turn with each other turn available

Steps

1. Cast Alrund's Epiphany by paying its mana cost
2. Taigam triggers, copying Alrund's Epiphany and exiling the original Alrund's Epiphany with four time counters on it
3. Resolve the Alrund's Epiphany copy, causing you to take an extra turn after this one
4. Cast Clockspinning with buyback by paying , removing a time counter from Alrund's Epiphany and returning Clockspinning to your hand
5. Repeat step 4 one additional time
6. Move to your next turn
7. At the beginning of your upkeep, Alrund's Epiphany's suspend ability triggers, removing a time counter from it
8. Cast Clockspinning with buyback by paying , removing a time counter from Alrund's Epiphany and returning Clockspinning to your hand
9. Alrund's Epiphany's suspend ability triggers, causing you to cast it from exile without paying its mana cost
10. Repeat from step 2

Results

• Infinite turns