Triumph of the Hordes by paying ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) , giving creatures you control infect until end of turn.
Cast
Windfall by paying ({2} magic symbol) ({U} magic symbol) , causing each player to discard their hand and then draw a number of cards equal to the greatest number of cards a player discarded this way.
Orcish Bowmasters triggers for each card drawn this way, giving each opponent a poison counter for each card they drew.
Each opponent loses the game due to having ten or more poison counters.
Results
Each opponent loses the game.
Metadata
In 17 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Powerful (Bracket 3+).