Evolution Witness, Agonasaur Rex, Insidious Roots, Ashnod's Altar, and Kratos, God of War

Prerequisites

• Evolution Witness on the battlefield
• Agonasaur Rex in hand
• Insidious Roots on the battlefield
• Ashnod's Altar on the battlefield
• Kratos, God of War on the battlefield
• available

Steps

1. Activate Agonasaur Rex's cycling ability by paying and discarding it
2. Agonasaur Rex triggers, putting two +1/+1 counters on Evolution Witness
3. Evolution Witness triggers, returning Agonasaur Rex from your graveyard to your hand
4. Insidious Roots triggers, creating a 0/1 Plant creature token, and then putting a +1/+1 counter on each Plant you control
5. Resolve the Agonasaur Rex ability from step 1, causing you to draw a card
6. Activate the Plant by tapping it, adding
7. Activate Ashnod's Altar by sacrificing the tapped Plant, adding
8. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Infinite self-discard triggers
• Near-infinite +1/+1 counters on certain creatures
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers