God-Eternal Kefnet + Jace, the Mind Sculptor + Temporal Mastery

Prerequisites

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Steps

1. 1Activate Jace's zero loyalty ability, putting Temporal Mastery on top of your library.
2. 2Pass the turn.
3. 3On your next draw step, when you draw Temporal Mastery, reveal it due to Kefnet's ability, making a copy that costs less to cast.
4. 4Cast the copy for , granting you an extra turn.

Effects

• Infinite turns
• Lock