they should at least be on the level of GG at this point and be useful in LSGeoTB
All they really need to do is make him a Support instead of a Tank and his usefulness would quadruple. He doesn't have a Taunt anyway, and they can't allow KAM's bonuses to spread to attackers (for fear of overpowering GAS & JKA) or Tanks (for fear of overpowering GK). But with KAM's bonuses on Mace as he currently exists - with no taunt - he becomes much more viable.
Now some tweaking would also help. His leadership could be made into a unique so as to better fit the "support" role, or Smite could be improved by not only dispelling buffs from enemies, but also granting a buff to or dispelling a debuff (or more than one) from allies).
Even better would be something like taking his current leadership, which looks like this:
Jedi allies gain 20% Offense and 9% Critical Chance, and they recover 5% of their Max Health when scoring a critical hit.
and making it something like this (whether or not you convert it to a unique at the same time, but I still favor converting it to a unique):
Jedi allies gain bonuses according to their role:
- Attackers gain immunity to Daze and 9% Critical Chance for each attacker ally, and at the end of each turn in which they score a critical, they gain 5% Critical damage (stacking) until the end of battle.
- Healers gain 50% TM whenever any ally falls below 50% Max Health and gain the unique buff Saving Grace at the beginning of each encounter, which can be neither copied nor dispelled, until defeated. Whenever any Jedi ally is defeated, if there is an active Jedi ally with Saving Grace, one Jedi with Saving Grace loses that buff and the defeated Jedi is revived with 70% Health, 70% Protection, and 20% TM for each other active Healer ally.
- Supports recover 1% Max Protection and 1% Max Health per Support ally whenever a buff expires on any ally, and immunity to ability block
- and
- Tanks gain +20% Defense each time they are critically hit, stacking until the end of the encounter or until defeated. They also gain the unique buff The Will of the Force at the beginning of each encounter, which can be neither copied nor dispelled, and lasting until that character is defeated. While a character has Will of the Force, it is immune to Destroy effects (except from Raid bosses). Whenever any attacker or support ally falls below 50% Max Health, if there is at least one active Jedi ally with Will of the Force, one such ally loses that buff, equalizes health % with the wounded ally, heals 5% of Max Health and Max Protection for each Tank ally, and then gains Taunt and Frenzy for 3 turns.
Non-Jedi gain stealth for 2 tuns at the beginning of each encounter.
Mace would then make every Jedi better at doing what they're supposed to do (and protect non-Jedi, which is something Jedi are supposed to do, by granting them stealth). The little bits that make certain effects more powerful if the squad has more than one toon with the same role also encourages experimentation with squads that overload one character type, which would be interesting to see put to use in theory crafting. Put him on the field with KAM and you've got not just a decent team, but an excellent team. Not meta, really, but getting close. Combine that with a solid attacker (GAS, maybe? or JKA?) and the +5% crit damage stacking until end of battle offers at least a small hope that some enterprising theory crafter could figure out a way to use Mace to solo HSTR. Even Aayla might work in that role, since with her counter-attack she would gain those +5% stacks faster than other attackers.