Ms. Bumbleflower, Evolution Witness, Mishra's Bauble, and Urza's Bauble

Prerequisites

• Ms
• Bumbleflower on the battlefield
• Evolution Witness on the battlefield
• Mishra's Bauble in hand or in the graveyard
• Urza's Bauble in hand or in the graveyard
• One of the self-sacrificing artifacts must be in your hand, with the other in your graveyard

Steps

1. Cast the self-sacrificing artifact in your hand by paying
2. Ms
3. Bumbleflower triggers, causing an opponent to draw a card, and then putting a +1/+1 counter on Evolution Witness
4. Evolution Witness triggers, returning the self-sacrificing artifact from your graveyard to your hand
5. Activate the self-sacrificing artifact cast in step 1 by sacrificing it, and paying other costs if necessary
6. Repeat

Results

• Infinite storm count
• Infinite card draw at the beginning of the next upkeep step
• Infinite draw triggers for any number of opponents
• Infinite card draw for any number of opponents
• Infinite draw triggers at the beginning of the next upkeep step
• Infinite +1/+1 counters on Evolution Witness