Limitless sigil is a sigil made by combining 1,000 vital sparks. The sigil begins with a maximum of 250 charges. It can be recharged at a cost of 4 vital sparks per charge. When activated, for 6 seconds it will allow the player to use threshold abilities, even if they don't have 50% adrenaline, as long as the 15% adrenaline that are used up by the threshold ability are available. However, the sigil fails to activate if you have 61% adrenaline or higher. This effect has a 90 second cooldown.