Ashaya, Soul of the Wild + Blossoming Tortoise + Carrion Ants

Ashaya, Soul of the Wild

Blossoming Tortoise

Carrion Ants

How it works

1. Activate Carrion Ants by paying 0 due to Blossoming Tortoise, giving Carrion Ants +1/+1 until end of turn.
2. Repeat.

This clever loop transforms your entire creature base into a massive engine for growth by turning every nontoken creature you control into a Forest land via Ashaya, Soul of the Wild. Blossoming Tortoise is the linchpin that makes this work, as its static ability reduces the activation cost of all lands you control by {1}. Because Ashaya makes your creatures into lands, the discount applies directly to Carrion Ants—reducing its {1} pump ability all the way down to free. You can then activate the Ants an arbitrary number of times at zero cost, resulting in an infinitely large creature to swing for the win.