Krynthax, Behemoth

Deathtouch, First Strike, Indestructible, Reach,
Shroud, Trample, Vigilance
Krynthax can't be countered.
Spells and abilities cannot cause you to sacrifice
Krynthax or return it to your hand.
If Krynthax would be put into your graveyard
or into exile from anywhere,shuffle it back into
its owner's library instead.
When Krynthax enters the battlefield, if no
mana was spent to cast it, you lose the game.