Black Box

{b}{r/w},{t}, Sacrifice Black Box: Destroy all nonland permanents.
"Each YoRHa unit is equipped with a 'black box', an
item created by reusing the core of a machine lifeform.
As such, it could be said that the consciousnesses of
YoRHa units and machine lifeforms share the same structure. Said black boxes were installed after determining that it would be inhumane to install
standard AI in androids that are ultimately destined
for disposal."