Yenna, Redtooth Regent + Nature's Chosen + Auratog

Yenna, Redtooth Regent

Nature's Chosen

Auratog

How it works

1. Activate the mana-producing permanent by tapping it, adding at least 2.
2. Activate Yenna by paying 2 and tapping it, creating a token copy of Nature's Chosen attached to Yenna, untapping Yenna, and scrying 2.
3. Activate the Nature's Chosen token's second ability by tapping Yenna, untapping the mana-producing permanent.
4. Activate the Nature's Chosen token's first ability by paying 0, untapping Yenna.
5. Activate Auratog by sacrificing the Nature's Chosen token, causing Auratog to get +2/+2 until end of turn.
6. Repeat any number of times.
7. If the mana-producing permanent can produce at least 3, this combo produces infinite mana that artifacts, creatures, and lands you control can produce.