Color Identity: U

Initial Card State
- Jace and Phyrexian Devourer on the battlefield.
Steps
- Activate Phyrexian Devourer by exiling the top card of your library.
- Repeat step 1 until you have an empty library.
- Resolve a Phyrexian Devourer ability, putting a number of +1/+1 counters on it equal to the exiled card's mana value.
- If Phyrexian Devourer has a power of at least seven, it triggers, causing you to sacrifice it.
- Repeat steps 3-4 until you sacrifice Phyrexian Devourer, thus causing all remaining Phyrexian Devourer abilities to fail to resolve due to having no legal targets.
- Activate Jace's first loyalty ability by putting a loyalty counter on it, causing target player to mill two cards and you to win the game due to drawing from an empty library.
Results
- Exile your library.
- Win the game.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).