Taigam, Master Opportunist + Clockspinning + Temporal Mastery

Prerequisites

• You've cast exactly one spell this turn.

Steps

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

Effects

• Infinite turns
• Lock