The Death Squad

Begin with the game with this card revealed.
When a creature deals damage to you, destroy it.
Only creatures you control have deathtouch,
first strike, shroud and reach.
You can only attack if you were attacked or lost
life previously.
{10}: Deal 12 damage to target creature and
destroy three target lands.
When you are eliminated, each other player
puts the top half of their library into their
graveyard and life total is halved.