So Aramasu gives a personality Tactician and then allows them to negate actions based on their discarded Tact Adv ability. Aranai reads that if they do not have the printed Tact trait they do not have Tact Adv. So my question is, does the sensei shut down the item's ability to grant someone the Tact Adv ability?
Aranai sensei + Aramasu's Mask
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.
So Aramasu gives a personality Tactician and then allows them to negate actions based on their discarded Tact Adv ability. Aranai reads that if they do not have the printed Tact trait they do not have Tact Adv. So my question is, does the sensei shut down the item's ability to grant someone the Tact Adv ability?
As long as they have 3C, yes, the trait on Aranai Sensei will prevent a Personality granted Tactician via Aramasu's Mask from using Tactical Advantage.