Imotekh the Stormlord, Kaervek, the Spiteful, Sword of the Meek, and Krark-Clan Ironworks

Prerequisites

• Imotekh the Stormlord on the battlefield
• Kaervek, the Spiteful on the battlefield
• Sword of the Meek in the graveyard
• Krark-Clan Ironworks on the battlefield
• You have a way to cause a 2/2 creature to enter the battlefield under your control

Steps

1. Cause a 2/2 creature to enter the battlefield under your control, which enters as a 1/1 creature due to Kaervek
2. The creature enters the battlefield, triggering Sword of the Meek, returning Sword of the Meek from your graveyard to the battlefield attached to the creature
3. Imotekh triggers, holding priority, activate Krark-Clan Ironworks by sacrificing Sword of the Meek, adding
4. Resolve the Imotekh trigger, creating two 2/2 Necron Warrior artifact creature tokens that enter the battlefield as 1/1 creatures due to Kaervek
5. Repeat from step 2

Results

• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers