Boon of Chains (5e Epic Boon)
From D&D Wiki
Boon of Chains
Description: your character becomes the vessel of a magic chain that now resides in their body and that they may summon.
As an action if there is a creature that your character would be able to grapple within 30 ft of your character you can pull that creature so it is within melee range of your character. If that creature is engaged with someone else you force them to take the disengage action and attacks of opportunity can be made. If there is a solid object in between you and the target (such as a tree or a barrier) the target is stopped by the object and takes 1d8 bludgeoning damage. Additional rewards to the player may include additional range, the ability to use this on larger creatures, ability to use this as a bonus action, or make the chain invisible for stealthier situations. <!- Description: your character becomes the vessel of a magic chain that now resides in their body and that they may summon->