Evolution Witness + Agonasaur Rex + Kheru Goldkeeper + Adrix and Nev, Twincasters + Doubling Season

Evolution Witness

Agonasaur Rex

Kheru Goldkeeper

Adrix and Nev, Twincasters

Doubling Season

How it works

1. Activate Agonasaur Rex's cycling ability by paying 2 and discarding it.
2. Agonasaur Rex triggers, putting two +1/+1 counters on Evolution Witness.
3. Evolution Witness triggers, returning Agonasaur Rex from your graveyard to your hand.
4. Kheru Goldkeeper triggers, creating four Treasure tokens.
5. Resolve the Agonasaur Rex ability from step 1, causing you to draw a card.
6. Activate three Treasures by tapping and sacrificing them, adding 2.
7. Repeat.

This loop turns a simple cycling trigger into a self-sustaining engine by amplifying both counters and token generation. When you cycle Agonasaur Rex, its ability targets Evolution Witness, which in turn triggers its own recursion to pull Agonasaur Rex right back to your hand. Meanwhile, Kheru Goldkeeper watches cards leave your graveyard and spawns Treasure tokens, a yield that is multiplied exponentially by the replacement effects of both Adrix and Nev, Twincasters and Doubling Season. Because Doubling Season also doubles the counters placed on Evolution Witness, the massive influx of Treasures more than pays for the cycling cost—leaving you with a cascade of infinite resources, card draw, and fueled permanents.