In comparison to the regular anchor, the imbued anchor has a +10 increased crush and strength bonus, and a +15% increase to the special attack's damage.
In addition, it can only be used within Daimon's Crater, Castle Wars, Clan Wars, and Soul Wars; attempting to attack anything outside the listed areas will result in the player being interrupted from doing so.
The barrelchest anchor (bh) has a special attack, Sunder, which doubles the player's accuracy, increases max damage by 25%, and drains the opponent's combat stats equivalent to 10% of the damage dealt in the following order: Defence, Attack, Ranged, then Magic.[1] This consumes 50% of the player's special attack energy.
^Jagex. Mod Ash's Twitter account. 28 October 2014. Archived from the original on 26 May 2020. Mod Ash: "Anchor: 200% accuracy, 110% max hit. Drains one stat by 10% of damage - if Defence is already on 1, it drains Attack, etc."