Shin'Kah, Ancient of Worlds

Indestructible, trample, vigilance
Shin'Kah, Ancient of Worlds can't attack or block as long as you control other nonland permanents.
{u}{r}{g}{x}, {t}: Shin'Kah, Ancient of Worlds deals X damage to each other creature, each planeswalker, and each player. Permanents that die this way are exiled rather than put into their owner's graveyards.