Mishra, Eminent One, Lithoform Engine, and Ashnod's Altar

Prerequisites

• Mishra, Eminent One on the battlefield
• Lithoform Engine on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. At the beginning of your combat phase, Mishra triggers, targeting any artifact
2. Holding priority, activate Lithoform Engine's first ability by paying and tapping it, copying Mishra's ability, targeting Lithoform Engine
3. Resolve the copy of Mishra's ability, creating a token copy of Lithoform Engine that is a 4/4 creature with haste named Mishra's Warform in addition to its other types
4. Activate Mishra's Warform's first ability by paying , and tapping it, copying Mishra's ability, targeting Lithoform Engine
5. Holding priority, activate Ashnod's Altar by sacrificing Mishra's Warform, adding
6. Repeat from step 3

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers