The Soulsword

Equipped creature gets +1/+1 and has trample.
Equipped creature gets +10/+10 for each player
who has lost the game.
Whenever a player loses the game, you draw 7
cards and gain 7 life.
The The Soulsword costs {3} more to Equip for
each time it is equipped beyond the first time.
Equip {2}{b}{b}