Transmutation Font, Clock of Omens, and Kaya, Geist Hunter

Prerequisites

• Transmutation Font on the battlefield
• Clock of Omens on the battlefield
• Kaya, Geist Hunter on the battlefield
• Kaya has at least two loyalty counters on it

Steps

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn
2. Activate Transmutation Font's first ability by tapping it, creating two Clue, Food or Blood artifact tokens
3. Activate Clock of Omens by tapping the two tokens, untapping Transmutation Font
4. Repeat from step 2

Results

• Infinite tapped Blood tokens
• Infinite tapped Clue tokens
• Infinite tapped Food tokens