When a unit is saved by Zhonya's or Guardian Angel (replacing its death), do equipment cards detach from the unit?

Ruling: When a unit is saved by Zhonya's or Guardian Angel (the death is replaced and prevented), the unit doesn't die, so equipment remains attached.

Nuances:

• When multiple replacement effects (like both Zhonya's and GA) would prevent the same death, you choose which applies first; the second replacement effect won't trigger since the death has already been prevented by the first one.