Trust me, its more fun to leave the Signets and Sol Rings at home for once
Considering the relatively low ink cost of all three Ducktails nephew cards, getting this ability rolling early on in a Lorcana game is entirely plausible, as well as being excellent gameplay-wise thanks to the advantage that additional card draw can get you
Alora's proficiency as a thief is well-represented by her ability to make one target creature unblockable each turn
Standard has been hostile to Creature decks that aren't incredibly fast aggro decks for a while now, and I don't think that's going to change with so many new sets entering Standard next year
4 Arthur - King Victorious 221/204, Steel Arthur holding Excalibur aloft is a triumphant scene that's been depicted countless times throughout history, so taking it on even in the context of a card game isn't something to be taken lightly
The closest comparison is [[Leyline Tyrant]], but Electro does it better