The Wise Mothman, Moss-Pit Skeleton, Altar of Dementia, and Herd Baloth

Prerequisites

• The Wise Mothman on the battlefield
• Moss-Pit Skeleton in the graveyard
• Altar of Dementia on the battlefield
• Herd Baloth on the battlefield
• You have a way to put a +1/+1 counter on Herd Baloth

Steps

1. Put a +1/+1 counter on Herd Baloth
2. Herd Baloth and Moss-Pit Skeleton trigger
3. Resolve the Herd Baloth trigger, creating a 4/4 Beast creature token
4. Resolve the Moss-Pit Skeleton trigger, putting it from your graveyard on top of your library
5. Activate Altar of Dementia by sacrificing the Beast token, causing you to mill Moss-Pit Skeleton and three other cards from the top of your library
6. The Wise Mothman's second ability triggers at least once, putting a +1/+1 counter on Herd Baloth, and any other desired creature(s) if applicable
7. Repeat from step 2

Results

• Infinite +1/+1 counters on Herd Baloth
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite self-mill
• Near-infinite +1/+1 counters