The Twilight of the end

This spell can't be countered.
When this card enters the battlefield put ten ruin counters on it.
At the start of your upkeep, remove a ruin
counter from this card plus the number of
Legendary Dark Titan creatures and planeswalker
you control, but if it does not have any counters
to remove while you control a legendary Dark
Titan creature, you win the game.