In the rule called “Devices” replace this text:

“The Valkyrie then rolls DICE12 in the GNDT a number of times equal to that Tinkerer’s Tinkering statistic.”

with this text:

“The Valkyrie then rolls DICEX, where X is 13 minus the Tinkerer’s Tinkering statistic, in the GNDT a number of times equal to that Tinkerer’s Tinkering statistic.”

and replace the reference to “DICE12” in the example with “DICE8”.

In essence, this makes it increasingly easier for Einherjar with a higher Tinkering statistic to create a device.