Taigam, Master Oppurtunist, Clockspinning, and Temporal Mastery

Prerequisites

• Taigam, Master Oppurtunist on the battlefield
• Clockspinning in hand
• Temporal Mastery in hand
• the first turn with each other turn available

Steps

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

Results

• Infinite turns