Hakbal of the Surging Soul + Agatha's Soul Cauldron + Crystalline Crawler + Aggravated Assault

Prerequisites

• You control at least five Merfolk.
• You have a nonland card on top of your library.

Steps

1. 1At the beginning of your combat phase, Hakbal of the Surging Soul's first ability triggers, causing you to reveal the top card of your library, put a +1/+1 counter on each Merfolk you control and putting the card back on top of your library.
2. 2Move to your postcombat main phase.
3. 3Activate five Merfolk you control using Crystalline Crawler's first ability by removing a +1/+1 counter from each of them, adding .
4. 4Activate Aggravated Assault by paying , causing you to untap all creatures you control and to get an additional combat phase after this one.
5. 5Repeat.
6. 6If you control six or more Merfolk, this combo nets infinite colored mana and +1/+1 counters on Merfolk you control.

Effects

• Infinite +1/+1 counters on certain creatures
• Infinite colored mana
• Infinite combat phases
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control