In the Shadowrun TCG (Trading Card Game), a Challenge is a type of gameplay action that allows players to test their abilities and potentially gain rewards.
Challenges are initiated by a player as an action during their turn. The player chooses a Challenge card from their hand and declares which opponent they are challenging. The opponent then has the option to either accept or decline the Challenge.
If the Challenge is accepted, the players must compare their relevant skills or abilities by rolling dice and adding modifiers. The winner of the Challenge may gain rewards such as additional cards, resources, or other benefits.