The discard effect from this doesn't happen until the end of that turn and it is on the seven new cards not the old hand meaning you need to rawdog the thing you want in the bin or have used a Brainstorm or Vampiric Tutor style thing to set it up
The artwork is playful and adorable, but the card itself remains a powerhouseespecially as a commander in legendary-matters decks
Arthur - Wizard's Apprentice You will notice a definite theme with Amethyst this set and that is a lot of cards that go into a "bounce" deck
is another one with things in the background of the text, this time those bent icicle-things, but it's basically a Counterspell effect that is a bit more involved in fucking around with your enemy's hand
This style of discard has fallen out of favor in R&D
I dont know that a Rakdos donation deck was really something people were clamoring for, but in the playgroups that enjoy what Xantcha has to offer, they have always been a popular general