Clockwork Amulet

Requires attunement
When you make an attack roll while wearing the
amulet, you can forgo rolling the d20 to get a 10
on the die. Once used, this property can't be used
again until the next dawn.
This copper amulet contains tiny interlocking
gears and is powered by magic from Mechanus, a
plane of clockwork predictability. A creature that
puts an ear to the amulet can hear faint ticking and
whirring noises coming from within.