Demented Craftsman: After this card enters play: Lose 1 Honor; if you are a Spider Clan player you may instead gain 1 Honor.
If I'm playing Spider, can I choose to lose 1 honor for it's entering-play effect?
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.
Demented Craftsman: After this card enters play: Lose 1 Honor; if you are a Spider Clan player you may instead gain 1 Honor.
If I'm playing Spider, can I choose to lose 1 honor for it's entering-play effect?
Yes a Spider player can choose to lose 1 Honor, as indicated by "you may" in card text.