Kentaro, the Smiling Cat + Shrieking Drake + Urza's Incubator + Arcane Adaptation

Kentaro, the Smiling Cat

Shrieking Drake

Urza's Incubator

Arcane Adaptation

How it works

1. Cast Shrieking Drake by paying 0.
2. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand.
3. Repeat.

This delightful loop turns ordinary Samurai synergies into an engine for infinite storm count and creature triggers by reshaping the battlefield with Arcane Adaptation naming Samurai. With that enchantment in play, Urza's Incubator discounts your creature spells by {2}, allowing Kentaro, the Smiling Cat to reduce the remaining cost of any Samurai spell down to zero. You then cast Shrieking Drake for free, and its enters-the-battlefield trigger forces it to immediately return itself to your hand so you can repeat the process indefinitely.