Ominous Seas, Greater Good, and Laboratory Maniac

Prerequisites

• Ominous Seas on the battlefield
• Greater Good on the battlefield
• Laboratory Maniac on the battlefield
• Ominous Seas has at least eight foreshadow counters on it

Steps

1. Activate Ominous Seas by removing eight foreshadow counters from it, creating a 8/8 Kraken creature token
2. Activate Greater Good by sacrificing the Kraken token, drawing eight cards and discarding three cards
3. Ominous Seas triggers eight times, putting eight foreshadow counters on itself
4. Repeat until you draw from an empty library, winning the game

Results

• Win the game