Xathrid Demon
Serra Avatar

   Prerequisites

What do I need to start this combo?
Xathrid Demon and Serra Avatar on the battlefield.
You have the highest life total or are tied for the highest life total.

   Steps

How does this combo work?
1
At the beginning of your upkeep, Xathrid Demon triggers, causing you to sacrifice Serra Avatar and causing each opponent to lose life equal to Serra Avatar's power.
2
Each opponent loses the game due to having zero or less life.

   Results

What do I get from this combo?
Each opponent loses the game
Near-infinite lifeloss
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