Yenna, Redtooth Regent + Krark-Clan Ironworks + Mycosynth Lattice

Yenna, Redtooth Regent

Krark-Clan Ironworks

Mycosynth Lattice

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of an Aura you control, then untapping Yenna and causing you to scry 2.
2. Activate Krark-Clan Ironworks by sacrificing the Aura token, adding CC.
3. Repeat.

This clever loop relies on Mycosynth Lattice to turn everything on the battlefield into an artifact, seamlessly bridging Yenna, Redtooth Regent's enchantment-copying ability with Krark-Clan Ironworks's mana-generating sacrifice outlet. By targeting an Aura with Yenna, you not only create a non-legendary copy that fuels the Ironworks for two generic mana, but that same Aura status automatically triggers Yenna to untap herself. Because Mycosynth Lattice also makes all permanents colorless, you can easily pay Yenna's activation cost using the exact mana produced by sacrificing the token, yielding an infinite loop of creation, sacrifice, and scry 2s.