Although Estrid, the Masked is the face commander, the alternate commander Tuvasa the Sunlit is more often what you'll use as your commander instead, as it provides more consistent support by drawing you cards and growing its stats for every enchantment you control
If you want a higher or lower powered version of the archetype, then Id suggest looking to a Commander like Hofri Ghostforge or Joshua, Phoenixs Dominant, both of which I have lists for here and here
Scar allows all Ally characters to get a +1 strength, and if Scar is exerted at the end of your turn, you could draw cards equal to the challenge strength of one of your Ally character cards, although you must discard two cards and banish that character
Now that ability is repeatable
Opt is low value, it is the weakest card quality card in the cube
It does cost a lot of mana, and if it gets removed, it can be hard to get back