Sage of Hours + The Ten Rings + Wizard Class + Ghostly Pilferer

Sage of Hours

The Ten Rings

Wizard Class

Ghostly Pilferer

How it works

1. If you have six or more cards in hand, activate Ghostly Pilferer by discarding a card.
2. Repeat step 1 until you have five or fewer cards in hand.
3. At the beginning of your end step, The Ten Rings triggers, causing you to draw cards until you have ten cards in your hand.
4. Wizard Class triggers for each card drawn, putting that many +1/+1 counters on Sage of Hours.
5. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
6. Repeat each turn.

To set this clever engine in motion, you first use Ghostly Pilferer's activated ability to aggressively churn through your hand by discarding cards until you have five or fewer left. This sets up The Ten Rings to trigger at the beginning of your end step, forcing it to refill your hand back up to ten cards and ensuring a massive burst of draws. Each of those draws triggers the Level 3 ability of Wizard Class, which funnels all those counters directly onto Sage of Hours. Once Sage of Hours has amassed enough +1/+1 counters, you cash them in to take an extra turn, letting you repeat the whole loop to lock down near-infinite turns.