The payoff for having such ridiculous amounts of mana later in the game is Bonder Prodigys second ability, which lets you look at the top five cards of your library and put any non-human creature onto the battlefield for
Enchantment At the beginning of your upkeep, put a time counter on As Foretold
Im not sure this is going to receive staple status due to not wanting to make others at the table potentially draw cards, but I can easily see several white token decks adding this card for redundancy
Ive listed a lot of other options to add if you want to spend a little more money, but what we have here should boost the effectiveness of the deck without becoming too overpowering at a relatively casual table
Demonic Counsel is a perfect compliment since it is the most accessible tutor for demons, and for today's purpose, every bit as effective as Demonic Tutor
You can control the amount of milling so you wont deck yourself, and the hideaway ability has a fairly reasonable condition to give you a free spell later