Sure, you could build a deck to discard your own cards, but honestly, making your opponent discard is far more fun
However, if you play Kida and then play characters afterward, they will not take that -3 debuff
These decks have an MSRP of $69.99 each for the regular versions or $149.99 for the foil Collector's Editions
These take effect as explained by the text on the card
Facilier, Agent Provocateur was one of amethysts strongest characters, thanks to his Into the Shadows ability, which gives you the option to return any of your banished glimmers back to your hand
By sending one of their cards back, you force them to discard the only one left, which is guaranteed to be their strongest or most valuable card