Yenna, Redtooth Regent + Ashnod's Altar + Enchanted Evening + Hyrax Tower Scout

Yenna, Redtooth Regent

Ashnod's Altar

Enchanted Evening

Hyrax Tower Scout

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of Hyrax Tower Scout.
2. When the Hyrax Tower Scout token enters, it triggers, untapping Yenna.
3. Activate Ashnod's Altar by sacrificing the Hyrax Tower Scout token, adding CC.
4. Repeat.

This enchanting engine gets its magic from Enchanted Evening, which blankets the battlefield by turning every permanent into an enchantment in addition to its other types. This transformation allows Yenna, Redtooth Regent to target and clone any creature—specifically a copy of Hyrax Tower Scout—since it now counts as a valid enchantment target without sharing a name with another permanent. When the Hyrax Tower Scout token enters the battlefield, its triggered ability untaps Yenna, while Ashnod's Altar provides the colorless mana needed to fund Yenna's activation cost by sacrificing the scout token for {C}{C}. By looping this sequence, you generate boundless creature entry, exit, and sacrifice triggers to overwhelm your opponents.