Coronavirus

Infect (This creature deal damage in the form of -1/-1 counters to creatures and to players in the from of poison counters)
{p/b}: Regenerate Coronavirus
Each creature with a -1/-1 counter has infect
if a creature with a -1/-1 counter were to die
make a copy of Coronavirus. At the end of each
end step, proliferate.
Streets emptied, markets closed, the world stopped...
But in the end, there was nothing but death.