Seedcradle Witch, and Selvala, Heart of the Wilds

Prerequisites

• Seedcradle Witch on the battlefield
• Selvala, Heart of the Wilds on the battlefield
• Selvala does not have summoning sickness
• You control a creature with power 4 or greater
• , plus an additional available if you do not control a creature with power 5 or greater available

Steps

1. Activate Selvala by paying and tapping it, adding at least
2. Activate Seedcradle Witch by paying , untapping Selvala and giving it +3/+3 until end of turn
3. Repeat

Results

• Infinite colored mana
• Infinitely large creatures until end of turn
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control