You have at least one additional card in your graveyard for each opponent you have.
Opponents are unable to block creatures you control.
Mana Needed
({3} magic symbol) ({U} magic symbol) available.
Steps
Activate
Araumi by tapping it and exiling cards from your graveyard equal to the number of opponent you have, giving
Clone encore until end of turn.
Activate
Clone's encore ability by paying ({3} magic symbol) ({U} magic symbol) and exiling it, causing you to create a token copy with haste for each opponent you have.
Choose to have each
Clone token enter the battlefield as a copy of
Blightsteel Colossus.
Deal combat damage to each opponent using a
Clone token, causing each opponent to get eleven poison counters.
Each opponent loses the game due to having ten or more poison counters.