Finally, I'll point out that Marneus, Alela, and Raffine all also play into an Esper sub-theme that may be subtle, but is definitely powerful: aggro-tempo
They are completely Clean, Mint and Untampered with
Wyleth, Soul of Steel Wyleth, Soul of Steel is a card draw powerhouse that works best with cheap auras and equipment
Cards like Lilo, Making a Wish and Stitch, New Dog were just two of the many cheap threats packed into the amber/x aggro shell, with the purpose of getting characters into play as fast as possible, and then using some number of Lanterns or shifting using Stitch, New Dog to get Stitch, Rock Star into play ahead of curve
That being said, Amethyst already has good access to draw with Friends, Rabbit, Castle, and more
Boost is the new set mechanic that allows a player to put a card from the top of their deck under a character to give them powerful passive abilities