Raggadragga, Goreguts Boss, Marwyn, the Nurturer, and Wurmcalling

Prerequisites

• Raggadragga, Goreguts Boss on the battlefield
• Marwyn, the Nurturer on the battlefield
• Wurmcalling in hand
• Marwyn does not have summoning sickness
• (at most) available

Steps

1. Activate Marwyn by tapping it, adding an amount of equal to its power
2. Cast Wurmcalling with buyback by paying a total of at least
3. Raggadragga's third ability triggers, giving Marwyn +7/+7 until end of turn and untapping Marwyn
4. Resolve Wurmcalling, creating a Wurm creature token and returning Wurmcalling to your hand
5. Repeat

Results

• Infinite creature tokens
• Infinite ETB
• Infinite green mana
• Infinitely large creatures until end of turn
• Infinite magecraft triggers
• Infinite storm count