Inexorable Tide, and Evolution Witness

Prerequisites

• Inexorable Tide on the battlefield
• Evolution Witness on the battlefield
• Evolution Witness has a +1/+1 counter on it
• One of the creatures with mana value 0 must be in your hand, with the other in your graveyard

Steps

1. Cast the creature with mana value 0 from your hand by paying
2. Inexorable Tide triggers, putting a +1/+1 counter on Evolution Witness
3. Evolution Witness triggers, returning the other creature with mana value 0 from your graveyard to your hand
4. Resolve the creature spell cast in step 1
5. The creature enters the battlefield and dies as a state-based action due to having 0 toughness
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite storm count
• Infinite proliferate
• Infinite +1/+1 counters on Evolution Witness