Experiment Kraj, Argothian Elder, and Horseshoe Crab

Prerequisites

• Experiment Kraj on the battlefield
• Argothian Elder on the battlefield
• Horseshoe Crab on the battlefield
• Experiment Kraj does not have summoning sickness
• You control up to two lands that can produce a total of at least

Steps

1. Activate up to two lands you control by tapping them, adding at least
2. Activate Experiment Kraj by tapping it, putting a +1/+1 counter on Horseshoe Crab
3. Activate Experiment Kraj using Horseshoe Crab's ability by paying , untapping it
4. Activate Experiment Kraj by tapping it, putting a +1/+1 counter on Argothian Elder
5. Activate Experiment Kraj using Horseshoe Crab's ability by paying , untapping it
6. Activate Experiment Kraj using Argothian Elder's ability by tapping it, untapping up to two lands
7. Activate up to two lands you control by tapping them, adding at least
8. Repeat from step 5

Results

• Infinite +1/+1 counters on creatures you control
• Infinite mana lands you control can produce