Imotekh the Stormlord, Clock of Omens, and Tortured Existence

Prerequisites

• Imotekh the Stormlord on the battlefield
• Clock of Omens on the battlefield
• Tortured Existence on the battlefield
• You control an artifact that can tap to produce at least
• You have at least one artifact creature card in hand
• You have at least one artifact creature card in your graveyard

Steps

1. Activate a mana-producing artifact you control by tapping it, adding
2. Activate Tortured Existence by paying and discarding an artifact creature card, returning another artifact creature card from your graveyard to your hand
3. Imotekh's first ability triggers, creating two 2/2 Necron Warrior artifact creature tokens
4. Activate Clock of Omens by tapping the Necron Warriors, untapping the mana-producing artifact
5. Repeat

Results

• Infinite ETB
• Infinite tapped creature tokens