The Tarrasque

The Tarrasque has haste and ward {10} as long as
it was cast.
Whenever The Tarrasque attacks, it fights target creature defending player controls.
"The legendary tarrasque-fortunately, only one exists-
is possibly the most dreaded monster of all ...
The tarrasque isn't in the habit of explaining itself,
and it rarely leaves any living witnesses in its wake."
—WotC, 2000