Most Wanted card (glacors) is a possible reward from the Rush of Blood Distraction and Diversion. The chance of winning a card is amount of waves defeated/20 on your weekly run. The card increases the chances of obtaining a unique drop from glacors. It has 100 charges and loses a charge for every glacor kill. You can check how many charges your card has left by right clicking your card and choosing 'check charges'. When elite Tirannwn tasks are completed, there is a 50% chance that a charge won't be used.
When every charge is used up, the card will disintegrate. When a pair of Glacyte boots is obtained with the help of the card, 50 charges will be used up at once. Shards of Armadyl are not affected by the card because of their already common drop rate.
It will be lost on death.