Contagion Engine [Outlaws of Thunder Junction: Breaking News]

Description

Set:	Outlaws of Thunder Junction: Breaking News
Type:	Artifact
Rarity:	Mythic
Cost:	{6}

When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls.
{4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)