Trading Post + Mirrodin Besieged + Lotus Petal + Displacer Kitten

Trading Post

Mirrodin Besieged

Lotus Petal

Displacer Kitten

How it works

1. Cast Lotus Petal by paying 0.
2. Mirrodin Besieged and Displacer Kitten trigger.
3. Resolve the Mirrodin Besieged trigger, creating a 1/1 Myr artifact creature token.
4. Resolve the Displacer Kitten trigger, blinking Trading Post.
5. Activate Lotus Petal by tapping and sacrificing it, adding 1.
6. Activate Trading Post's third ability by paying 1, tapping and sacrificing the Myr token, returning Lotus Petal from your graveyard to your hand.
7. Repeat.

This intricate loop centers around the versatile utility of Trading Post, using its artifact-recovery ability to buy back Lotus Petal each iteration to continually fuel its activation costs. Whenever you cast that Lotus Petal, Displacer Kitten steps in to blink Trading Post, keeping it untapped and ready to churn through sacrifices while triggering Mirrodin Besieged to constantly churn out fresh Myr artifact creature tokens. Those generated Myrs provide the exact fodder Trading Post needs to feed its graveyard-recursion engine, while the constant cycling builds an overwhelming storm count and infinite triggers.