Cloak of Displacement

Wondrous Item, rare, requires attunement · 2024 rules, SRD 5.2

While you wear this cloak, it magically projects an illusion that makes you appear to be standing in a place near your actual location, causing any creature to have Disadvantage on attack rolls against you. If you take damage, the property ceases to function until the start of your next turn. This property is suppressed while your Speed is 0.

Also in the 2014 rules (SRD 5.1).

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