Black Panther, Wakandan King, Ashaya, Soul of the Wild, and Herd Baloth

Prerequisites

• Black Panther, Wakandan King on the battlefield
• Ashaya, Soul of the Wild on the battlefield
• Herd Baloth in hand
• available

Steps

1. Cast Herd Baloth by paying
2. When Herd Baloth enters the battlefield, Black Panther triggers, putting a +1/+1 counter on Herd Baloth, as it is a Forest land due to Ashaya
3. Herd Baloth triggers, creating a 4/4 Beast creature token
4. When the Beast enters the battlefield, Black Panther triggers, putting a +1/+1 counter on Herd Baloth, as it is a Forest land due to Ashaya
5. Repeat from step 3

Results

• Infinite ETB
• Infinite creature tokens
• Infinite +1/+1 counters on Herd Baloth