ARCArchenemy

Juggernaut

Juggernaut from Archenemy
Juggernaut from Archenemy

Artifact Creature — Juggernaut   {4} (CMC:4)

Juggernaut attacks each turn if able. Juggernaut can't be blocked by Walls.

Built with neither a way to steer nor a way to stop, the juggernauts were simply aimed at an enemy's best defenses and told to charge.

109 ARC • ENArnie Swekel

™ & © 1993—2010 Wizards of the Coast

Legal in: Pioneer,Modern,Legacy,Vintage,Commander

Oracle Text (click to copy):
View this MTG card on Gatherer 
8/15/2010
If, during your declare attackers step, Juggernaut is tapped, is affected by a spell or ability that says it can't attack, or is affected by "summoning sickness," then it doesn't attack. If there's a cost associated with having Juggernaut attack, you aren't forced to pay that cost, so it doesn't have to attack in that case either.
8/15/2010
If there are multiple combat phases in a turn, Juggernaut must attack only in the first one in which it's able to.
7/18/2014
An effect that says “can’t be blocked except by Walls” (for example, the effect of Invisibility) doesn’t override the text on Juggernaut’s last ability. If Juggernaut is affected by such an effect, it can’t be blocked.
Card Juggernaut is not on TCGPlayer.