In Avengers: Infinity War (2018), Ebony Maw, a Child of Thanos and member of the Black Order, has captured Doctor Stephen Strange and is taking him to Titan. Maw attempts to take the Time Stone from around Strange's neck (encased in the Eye of Agamotto) but it burns him (or seems to). The following exchange occurs:
STRANGE: It's a simple spell, but quite unbreakable.
MAW: Then I'll take it off your corpse.
STRANGE: You'll find a dead man's spell very hard to break.
In this, it seems Strange is saying this to keep himself alive instead of letting Maw kill him. However, it seems as if Strange may be bluffing. Was he lying to Maw or would the spell have been left there in his death?