Steel Seraph automatically comes with flying, so even if its your only creature in play, you can at least push some damage through with its solid stats and evasion
I just think Rydia's Return is overcosted and not good enough, though it does seem good out of the sideboard for slower matchups
The rules for building a deck are rather simple and easy to understand, but beyond that, players should also keep in mind a few tips that will help them build good decks
6 Donald Duck, Flustered Sorcerer Making Your Opponent Work Harder The rules of Lorcana are simple
Doesn't even need to be auras or rooms
Its Eminence keyword means that, whether this card is on the battlefield or not, all your MTG dragons are one mana cheaper