Atsushi, the Blazing Sky + Splinter Twin + Clock of Omens + Liquimetal Coating

Atsushi, the Blazing Sky

Splinter Twin

Clock of Omens

Liquimetal Coating

How it works

1. Turn Atsushi into an artifact using Liquimetal Coating.
2. Activate Atsushi by tapping it, creating a token copy of it with haste.
3. Put the Atsushi token into your graveyard due to the legend rule.
4. When the Atsushi token dies, it triggers, creating three Treasure tokens.
5. Activate Clock of Omens by tapping two Treasures, untapping Atsushi.
6. Repeat from step 2.

This loop turns our legendary dragon into a literal engine of replication by using Liquimetal Coating to temporarily make Atsushi, the Blazing Sky an artifact. Once it has that artifact type, Splinter Twin grants it the ability to tap and spin out a token copy, which immediately hits the graveyard due to the legend rule and triggers Atsushi's death ability to yield three Treasure tokens. We then feed those freshly minted treasures straight into Clock of Omens, tapping a pair of them to untap our original Atsushi and do it all over again. The result is an endless cascade of treasure and death triggers that can generate infinite mana or exile your entire library to cast everything you find.