Tactic: Artifact card from Classic OverPower
Artifact cards represent various items of cosmic, mystic, or even scientific origin that can permanently affect one of your characters, your entire team, or even the very mechanic of the game!
Each Artifact card has a Power Type and Icon listed in the upper left corner of the card that specifies exactly what a Front Line Character needs in order to begin to use the card. For example, a red fist icon with a number 6 in it would indicate that the Front Line Character would need a Fighting of 6 or greater on their Power Grid in order to begin to use that particular Artifact card. However, like all Tactic cards, Artifact cards require two Front Line Characters to use. Just beneath the Icon in the upper left, below the words "And Teammate With" is another Icon and Value. This indicates what Value in which appropriate Power Type that the 2nd Front Line Character must have in order to use the Artifact card. For example, a red fist icon with a number 5, and the words "Or Less" in it would indicate that the Front Line Teammate would need a Fighting of 5 or less on their Power Grid in order to participate in that particular Artifact card.
If the player has at least two different Front Line Characters that meet all of the conditions that are required on the card, then the card is considered usable. The 1st Front Line Character would then play the Tactic: Artifact card onto his Front Line Teammate, changing the Teammate or giving the Teammate the ability to do whatever is specifically listed on that Artifact card. Each Artifact card has an explanation of what it does printed on the card.
In some cases, the effect of the Artifact is immediate and modifies the Character or the team in some way, for the remainder of the game, or until the Artifact is removed from play. In other cases, the effect of the Artifact is not immediate and must be initiated in some way. In such cases, exactly how and when the game effect of an Artifact card is to be used is printed on the card itself. Remember, the game effect of an Artifact card can not be used while the Artifact card is Placed. An Artifact must be Played onto a Front Line Character in order for the game effect to be used.