Cruelclaws Heist I must admit my bias here: Bloomburrow s Cruelclaw's Heist is one of my favorite Standard cards
When this creature deals combat damage to a player, exile it and the top card of your library in a face-down pile, shuffle that pile, then manifest those cards
5C mana-fixing rocks like Chromatic Lantern, Fellwar Stone, and Coalition Relic are perfect here, but even the signet cycle (Golgari Signet) and the talisman cycle (Talisman of Creativity) do a great job here
Slotting in Welcoming Vampire to replace Sporemound is a good choice, reducing the overall casting cost curve of your deck a little and replacing a card that relies on landfall triggers to be good, something the deck isnt optimized for
You can turn Treasure tokens (that Storm the Vault may have created) or Blood tokens into the 2/1 myr token that Brudiclad spawns
As always, this requirement introduces some risk, however, the low cost of Pip-Boy 3000 means you dont have to risk the world