Cyclops, Atmospheric Divide

Cyclops, Atmospheric Divide can't be countered.
If Cyclops, Atmospheric Divide attacks or
becomes the target of a spell each opponent
chooses one that hasn't been chosen —
• Your total becomes 4.
• Discard your hand, then exile your graveyard.
• Each opponent creates X colorless, human mu-
tant creature tokens with base power and tough-
ness. X/X, where X is the number of mutants on
the battlefield.