You can take a mulligan and re-draw your first cards, but every time you do, your hand gets one card smaller, which encourages you not to bother unless youre seriously screwed over
Its not my first choice for straight-up selling cards, since Cardspheres economy usually revolves around buying and selling cards at lower than market price (you can trade people cards for 50% of their value, but you also receive cards at a discounted rate, for example)
Ongoing schemes are a little different
(To manifest dread, look at the top two cards of your library, then put one onto the battlefield face down as a 2/2 creature and the other into your graveyard
2 The Witch's Vanity None of the chapters on The Witch's Vanity are game-breaking or mega-efficient, but getting three diverse, relevant effects on a cheap two-mana card is what turns The Witch's Vanity into a great draft card in black
If you want to gain some additional lore, you can have him quest without being overly worried about him being banished in a single blow