Relics and their effectiveness in general

Not all relics are created equal - by broad design.

You need to look at the highlighted (in green) stats to see what will be increased with relics. This is one of either Strength, Agility, Tactics PLUS “Mastery.”

You should be able to reasonably predict if your toon will increase in stats the way you’d prefer, or if their relic is a poor choice of scarce resources.

In general, Attackers received the best boost to stats... of all attackers, Agility Attackers get the most boost to pure offense (Nightsister Spirit, for example, becomes RIDICULOUS at higher relic levels). JKA, as a Strength Attacker, gains Health, Damage, and Armor... cool if you run him with Padmé, less impressive if you run him with Jedi.

Looking at Traya, a Tactics Support toon, would generally leave you unimpressed with her gains... until you realize she gains ungodly Crit Avoidance for survivability, and that you’re meant to mod her to take advantage of her stacking offense and offensive gains at high relic levels.

While making toons stronger, relics also tend to pigeon-hole them more to specific teams and roles, which I believe is a big part of their intention.