Taigam, Master Opportunist, Clockspinning, and Temporal Trespass

Prerequisites

• Taigam, Master Opportunist on the battlefield
• Clockspinning in hand
• Temporal Trespass in hand
• minus for each card you exile with Delve the first turn, plus each other turn available

Steps

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

Results

• Infinite turns