Krark, the Thumbless, Earthcraft, Quantum Misalignment, and Multiversal Incursion

Prerequisites

• Krark, the Thumbless on the battlefield
• Earthcraft on the battlefield
• Quantum Misalignment in hand
• Multiversal Incursion on the battlefield
• available

Steps

1. Activate Earthcraft by tapping an untapped creature you control, untapping a basic land
2. Activate that basic land by tapping it, adding one mana
3. Repeat until there are no more available creatures to tap
4. Cast Multiversal Incursion by paying its mana cost, targeting Krark
5. When you cast Multiversal Incursion, Krark and any additional copies of Krark trigger
6. Resolve all Krark triggers, copying Multiversal Incursion for each flip you won, and returning the original to your hand as long as you lost at least one flip
7. Resolve each copy of Multiversal Incursion, creating a nonlegendary token copy of Krark each time
8. If Multiversal Incursion is back in your hand, repeat from step 1
9. If you won every flip, instead resolve the Multiversal Incursion card itself, creating one more Krark token and putting the card into your graveyard
10. Repeat steps 1 through 9 with Quantum Misalignment, if you still need more Krark copies
11. If you manage to pass a critical threshold of Krark copies before both Multiversal Incursion and Quantum Misalignment end up in your graveyard, this combo is overwhelmingly likely to be an infinite loop from that point on
12. See the widget below for failure chances
13. Once you have infinite mana and infinite copies of Krark, you can repeat this loop with any instant or sorcery you can cast

Results

• Infinite colored mana
• Infinite copies of creatures you control
• Infinite copies of instant or sorcery spells you cast
• Infinite magecraft triggers
• Infinite storm count
• Infinite untap of basic lands you control