Crash of Worlds

This spell can't be countered.
Destroy all permanents, then return all land cards
from the graveyard to the battlefield under their
owner's control, then shuffle all cards in all graveyards into their owner's libraries.
Epic (For the rest of the game, you can't cast spells.
At the beginning of each of your upkeeps, copy this
spell except for its epic ability. You may choose new
targets for the copy)