Yenna, Redtooth Regent + Ordeal of Nylea + Amulet of Vigor + Gatherer of Graces

Yenna, Redtooth Regent

Ordeal of Nylea

Amulet of Vigor

Gatherer of Graces

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of Ordeal of Nylea, then untapping Yenna and causing you to scry 2.
2. Activate Gatherer of Graces by sacrificing the Ordeal of Nylea token.
3. The Ordeal of Nylea token's second ability triggers, causing you to search your library for two basic land cards and put them onto the battlefield tapped.
4. When the lands enter the battlefield, Amulet of Vigor triggers twice, untapping them.
5. Resolve the Gatherer of Graces ability from step 2, regenerating it.
6. Activate the two lands by tapping them, adding 2.
7. Repeat.