Nevada Mining Corporation

When Nevada Mining Corporation is played, gain a ({e}) Time Warp level.
Instability: This card must be tapped every turn.
If not, exile 2 creatures you control.
{t}: Gain a red and a blue mana. Untap at the
end of your turn.
NeMco was a front for the government's
tests on time technology. Nobody knew
until survivors scoured the ruins of the shaft.