Come to think of it, that is pretty strange, at least for this ruleset. There's no real benefit to marks in these rules with earthquake/trident banned (deflag/steal I guess) so it doesn't matter that they're banned, but it's a strange ban to make, unless I missed something obvious. Perhaps it was a relic from a previous ruleset that didn't include eq/trident bans, and never got removed. Either way, banned marks are irrelevant, so I'm not worried about it :p (you can also get banned nymphs from nymph's tears off of them, but queen and tears are also banned, and quantum pillar wasn't banned)