Doppelgang + Echo Mage + Bounding Krasis

Doppelgang

Echo Mage

Bounding Krasis

How it works

1. Cast Doppelgang by paying 6, targeting Bounding Krasis and a mana-producing permanent.
2. Holding priority, activate Echo Mage by paying and tapping it, copying Doppelgang, targeting Bounding Krasis and a mana-producing permanent.
3. Resolve the copy of Doppelgang, creating two copies of Bounding Krasis and the mana-producing permanent.
4. When the Bounding Krasis tokens enter, they trigger, untapping Echo Mage and any other applicable permanent.
5. Holding priority, activate the two mana-producing permanent tokens by tapping them, adding at least .
6. Repeat from step 2.

This dazzling loop begins by casting Doppelgang with a massive investment of mana, targeting a mana-producing permanent and Bounding Krasis to set the stage for an overwhelming cascade. Before the original spell resolves, a leveled-up Echo Mage steps in to copy Doppelgang with its activated ability, kicking off a self-sustaining cycle of exponential growth. As the Doppelgang copies resolve, they flood the board with fresh tokens of both the mana source and Bounding Krasis, whose entry triggers untap Echo Mage alongside your newly minted mana producers. With Echo Mage untapping and fresh mana ready to fuel its copying ability over and over, you can repeat the process indefinitely to fill the battlefield with endless copies of every permanent you control.