Is it legal to target Mantis Detachment with Knowledge? And if it is, would my unit stay at the battle while moving the opposing unit home?
Knowledge and Mantis Detachment
A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Is it legal to target Mantis Detachment with Knowledge?
Yes. Straight application of the keyword rule.
(W)ould my unit stay at the battle while moving the opposing unit home?
Answered previously here: viewtopic.php?f=59&t=64216 viewtopic.php?f=59&t=60882
Just added this elaboration of a rule to the glossary: http://rules.l5r.com/Glossary_U#Unit: "Effects that move or otherwise transfer a unit from one location to another affect only the Personality. ... Attached cards cannot move in isolation, and effects that attempt to move an attached card alone are negated; they do not cause the Personality they are attached to to move."