Minecraft Dungeons:Chains

"Has a 30% chance to chain a cluster of mobs together and keep them bound for a short time [sic]"

- In-game description

Chains is an enchantment in Minecraft Dungeons. It grants a chance to bind mobs together with the intent of easier attacking. The duration the mobs are chained together increases with each tier.

Tiers
zh:Minecraft Wiki:计划/Minecraft Dungeons Wiki/Chains