Underworld Breach, Frantic Search, Brain Freeze, and High Tide

Prerequisites

• Underworld Breach on the battlefield
• Frantic Search in the graveyard
• Brain Freeze in the graveyard
• High Tide in hand
• You have at least three other cards in your graveyard
• You control at least three Islands
• available

Steps

1. Cast High Tide by paying
2. Activate up to three Islands by tapping them, adding
3. High Tide triggers three times, adding
4. Cast Brain Freeze for its escape cost by paying and exiling three other cards from your graveyard
5. Brain Freeze's storm ability triggers, copying Brain Freeze for each spell you've cast before it this turn, with one copy targeting you and all remaining copies targeting any player(s)
6. Resolve all Brain Freezes, causing you to mill six cards, and each player to mill three cards for each Brain Freeze that targeted them
7. Cast Frantic Search for its escape cost by paying and exiling three other cards from your graveyard, causing you to loot twice and untap three Islands
8. Repeat
9. Once you have milled your entire library, you may use the remaining to cast Brain Freeze repeatedly targeting your opponents

Results

• Near-infinite blue mana
• Near-infinite draw triggers
• Near-infinite looting
• Near-infinite magecraft triggers
• Near-infinite mill
• Near-infinite self-discard triggers
• Near-infinite self-mill
• Near-infinite storm count