Shizune, Hokage's Attendant

When Shizune, Hokage's Attendant enters
the battlefield, you may search your library
for a Hokage card. Reveal it, then put it in
your hand. Shuffle your library.
Shizune, Hokage's Attendant has lifelink as
long as you control a Hokage planeswalker.
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"Lady Tsunade! You can't!!"