When initially purchased or obtained, the armour starts at tier 25. If your Defence level is 50 or higher, equipping the armour results in the following message: The armour adapts to suit your current abilities. and upgrades the armour to tier 50 or 75 based on your Defence level. When logging into a free-to-play world, the armour will revert to its tier 50 variant.
The armour's set effect has a chance (depending on the number of pieces worn) to reduce the cooldown time by 15% for abilities with cooldowns of at least 30 seconds. Wearing at least 3 pieces is required to gain this set effect, similar to how the other warpriest armour sets function. A mix of Armadyl and Bandos warpriest armour pieces can be worn contribute to the set effect. When the effect activates, the following message appears in the chat box: <ABILITY>: Your armour reduced the cooldown from <ORIGINAL DURATION> to <REDUCED DURATION>.