Then, if nothing demands your attention, you can cast Unexpected Windfall before your next turn, improve your hand, and untap with two fresh Treasures ready to help cast whatever you drew into
I suspect the one from Chapter II is going to be a strong candidate
Its Cancel some percentage of the time, but drawing a card is a massive upside
As a downside, you will be dealt 1 point of damage, but the positives brought about by this ability will cover for and outweigh the negatives
Purchase packs, play in new Sealed and Draft events, and start building new decks using awesome new cards
For context, a Charizard EX #199 Grade 10 could go for over $700, while a Grade 9.5 of the same card would cost about half of that (at $370)