Pearl Harbor

({t}: Add {u} or {r}.)
As Pearl Harbor enters the battlefield, you may
pay 2 life. If you don't, it enters the battlefield
tapped.
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"Yesterday, December 7, 1941 -a date which will live
in infamy- the United States of America was suddenly
and deliberately attacked by naval and airforces of the
Empire of Japan."
—Frank D. Roosevelt Steam Vents