This isn't a 3.0 issue per se, but since magic is being done, this seems like a good time to mention this minor error in the POWER messaging.

You sense the Courage spell upon you, which will last for about one roisaen.
You sense the Courage spell upon you, which will last less than a roisan.

When the duration is one minute, roisaen should be changed to the singular form, roisan.

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Mr. Gorbachev, tear down this wall rank!