Thran Vigil + Benthic Biomancer + Golgari Brownscale

Prerequisites

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Steps

1. 1Put a +1/+1 counter on Benthic Biomancer.
2. 2Benthic Biomancer triggers, causing you to mill two cards and return Golgari Brownscale from your graveyard to your hand, and then causing you to discard Golgari Brownscale.
3. 3Thran Vigil triggers, putting a +1/+1 counter on Benthic Biomancer.
4. 4Repeat from step 2.

Effects

• Infinite self-mill