Scarecrone + Su-Chi Cave Guard + Mirrorworks + Krark-Clan Ironworks + Frostcliff Siege

Scarecrone

Su-Chi Cave Guard

Mirrorworks

Krark-Clan Ironworks

Frostcliff Siege

How it works

1. Activate Krark-Clan Ironworks by sacrificing Su-Chi Cave Guard, adding CC.
2. When Su-Chi Cave Guard dies, it triggers, adding eight C.
3. Cast Scarecrone by paying 3.
4. When Scarecrone enters the battlefield, Mirrorworks triggers, causing you to pay 2 to create a token copy of Scarecrone.
5. Activate the nontoken Scarecrone's second ability by paying 4 and tapping it, returning Su-Chi Cave Guard from your graveyard to the battlefield.
6. When Su-Chi Cave Guard enters the battlefield, Mirrorworks triggers.
7. Holding priority, activate Krark-Clan Ironworks by sacrificing the nontoken Scarecrone, adding CC.
8. Resolve the Mirrorworks trigger, causing you to pay 2 to create a token copy of Su-Chi Cave Guard.
9. Activate Krark-Clan Ironworks twice by sacrificing both Su-Chi Cave Guards, adding CCCC.
10. When the Su-Chi Cave Guards die, they trigger, adding 16 C.
11. Activate the token Scarecrone's second ability by paying 4 and tapping it, returning Scarecrone from your graveyard to the battlefield.
12. Repeat from step 4.

This intricate loop is entirely fueled by the massive mana engine of Su-Chi Cave Guard, which generates eight generic mana upon death to easily sustain the costs of our resurrection loop. Krark-Clan Ironworks serves as the primary sacrifice outlet to cash in our artifacts, while Mirrorworks steps in to duplicate our key permanents so we never run out of options. Scarecrone acts as the recurring resurrection engine—tapping to pull artifact creatures back from the graveyard—while Frostcliff Siege rounds out the battlefield with passive stat boosts, trample, and haste to ensure our endlessly pivoting army can immediately overwhelm the opponent.