Yenna, Redtooth Regent + Airtight Alibi + Careful Cultivation + Auratog

Yenna, Redtooth Regent

Airtight Alibi

Careful Cultivation

Auratog

How it works

1. Activate Yenna by paying 2 and tapping it, creating a copy of Airtight Alibi attached to Yenna, and then untapping Yenna and causing you to scry 2.
2. When the Airtight Alibi token enters, it triggers. Holding priority, activate Yenna by tapping it, adding .
3. Resolve the Airtight Alibi trigger, untapping Yenna.
4. Activate Auratog by sacrificing the Airtight Alibi token.
5. Repeat.

This clever engine turns Yenna, Redtooth Regent into a prolific copy machine by abusing the interaction between her tap ability and auras that untap their targets. When Yenna targets Airtight Alibi with her duplication ability, the resulting token enters the battlefield, immediately triggers its ability to untap its enchanted creature, and untaps Yenna in the process due to Yenna's own text. Meanwhile, Careful Cultivation provides the necessary green mana to fund Yenna's activation costs whenever you need an extra boost, while Auratog acts as the vital sacrifice outlet to clear away the cloned Aura so the board stays clean for the next iteration.