Evolution Witness + Lotus Petal + Ms. Bumbleflower + Welding Jar

GWU identity

Commander legal

The 4 combo pieces

What must be in place

There is at least one additional artifact on the battlefield.
One of the self-sacrificing artifacts must be in your hand, with the other in your graveyard.

How to execute it

  1. Cast the self-sacrificing artifact in your hand by paying {0}.
  2. Ms. Bumbleflower triggers, causing an opponent to draw a card, and then putting a +1/+1 counter on Evolution Witness.
  3. Evolution Witness triggers, returning the self-sacrificing artifact from your graveyard to your hand.
  4. Activate the self-sacrificing artifact cast in step 1 by sacrificing it, and paying other costs if necessary.
  5. Repeat.

What the combo produces