Experiment Kraj, Gilder Bairn, Biomancer's Familiar, and Earthen Arms

Prerequisites

• Experiment Kraj on the battlefield
• Gilder Bairn on the battlefield
• Biomancer's Familiar on the battlefield
• Earthen Arms in hand
• Experiment Kraj does not have summoning sickness
• You control at least one Forest or Island
• available

Steps

1. Activate the Forest or Island by tapping it, adding or
2. Cast Earthen Arms for its awaken cost by paying , putting two +1/+1 counters on Gilder Bairn, and causing the Forest or Island to become a 0/0 Elemental creature that is still a land, and putting four +1/+1 counters on it
3. Activate Experiment Kraj using the Forest or Island's ability by tapping it, adding
4. Activate Experiment Kraj using Gilder Bairn's ability by paying and untapping it, doubling the counters on target permanent
5. Repeat from step 3

Results

• Infinite proliferate