How are players limited to selecting there Talent Cards?

Is it only limited to the main groups(Focus, Reputation, Tactic etc). For example, could a giant slayer choose a tactic talent even if its power boosts fellowship?

RoBro said:

No limit in selecting the talent cards so yes you troll slayer can do that. In such a case the troll slayer may be selecting such a talent to slot in the party card.