The binding contract is a special type of pouch that is created at summoning obelisks for use with Ancient Summoning. The player must have completed the Dagon Bye achievement in order to create the pouch.
The binding contract may be used to create any of the following Ancient Summoning familiar pouches. Simply kill any of the demons listed below in order to bind the demon to the contract (a ratio of 1:1). When the demon is killed, the demon will be bound to the contract if there is inventory space available. If no inventory space is available, then the demon simply dies and is not bound to the contract.
Although the pouches are untradeable, players who have not yet completed the achievement can still obtain binding contracts from ancient caskets. They will however not be able to bind them to a demon, but instead receive the message You cannot use binding contracts until you complete the Dagon Bye mystery.
||Absorbs 10% of any damage dealt to you by taking the hit itself.
||Heals for 10% of its max health.
||Grants a 5% chance while training Mining, Fishing, Woodcutting, Divination or Archaeology to duplicate the gained resource and store it within itself. Can carry up to 20 items.
||Teleports all items stored within the familiar's inventory to your bank.
||Deals 25% of your healing done as damage to its target.
||Transfers 10% of the familiars max health to you.
||Grants an invisible +12 Mining level boost.
||Your next mining swing will deal 50% more damage.
||The summoning familiar will automatically teleport to the target and deal damage when it teleports.
||Bind and Teleblock the target for 9.6 seconds.
||Summons a level 126 combat familiar.
||Will temporarily provide the player, familiar, and nearby other players with a +5% critical strike buff for 15 seconds.
||Deal more damage to the target according to how much missing health it has.
||"Death Chop": Replicates the Ripper Demons' 'jump' attack dealing 200-320% of its max hit in damage.
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- ^ There is further information on this drop; see the associated page for details.
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