I wonder why we don't have to roll Arcana to get information for Examine. IIRC Loremaster worked like that in D:OS2? The engine should then already have the capability to make it so, I would guess.
I don't think it's a very good idea to basically give players access to the Monster Manual while playing D&D and patiently wait while they read the stats, vulnerabilities and resistences. Yes, Wizards are really strong in D&D etc etc, but by itself Intelligence is a pretty bad stat, so it would be nice if would have extra utility for revealing more information about whatever we're fighting.
And sometimes, just sometimes, when something is unique... don't give any information at all.

The cursed fireballs in the game's best dungeon were fun and scary because you didn't know what CC immunities they had, so... you just had to try things. And when you finally figure it out, it feels great.
PS: Perhaps make this a Tactician-only feature? Personally I thought Tactician was super easy at all times (except Last Light before Isobels HP and AC were fixed so she didn't get KO'd before you even got a turn).