Amethyst is found in many top-placing decks in Lorcana tournaments and is often paired with Amber or Ruby ink to create a Bounce Control deck archetype
The Disney Lorcana Reign of Jafar Illumineer's Trove contains
However, up until very recently, we've been pretty much in the dark about the set, save for a few pretty pieces of key art
Then, you may play 1 Card Name The Emperor of cost 5 or less from your hand onto the field. Your opponent will likely think twice before breaking him, since doing so not only lets you draw a card but also play another Card Name The Emperor onto the fieldthe only requirement being that it costs 5CP or less
Keep an eye out for Wendy Darling, Courageous Captain as well, as she gets a nice buff to her strength and lore value just by having as fellow Pirate in play
Locke eventually succeeds in doing so with the Phoenix Espers Magicite