Sorrowbond is a spell used to sever the bond between Titans or artifacts and their Seekers. When cast, a rainbow colored “barrier” appears around the Amulet or other item which floats towards the caster.
This spell was used by DeFoe to sever the Huntik team from their Titans, although their Amulets were recovered. S1E09Dante Vale later used Sorrowbond to contain DeFoe's Amulets. S1E10
It was used by Shauna to take the Eathon Lambert's journal and the Amulet of Will from Lok. She also tried to take the Tao's ring but Lok had hidden it in a glove and she couldn't find it. S1E24