Tuktuk Rubblefort With the small inconvenience that it's not colorless and it costs 1 extra mana, Tuktuk Rubblefort is a better version of Crashing Drawbridge as you dont need to wait a turn to give your other creatures haste
It's such an effective finisher that the price of the card was always likely to creep up steadily, at least until there's a reprint
The Loop If you are able to mill your entire library, and you have a single Memory's Journey and a single Runic Repetition in your deck, you can set it up so that you're drawing the perfect card (almost) every turn for the rest of the game
The formula is essentially talk, duel, save, duel someone else, save, and repeat
The next most fun you can have is donating beneficial effects to them, disincentivizing them from attacking you while you gain life and draw cards from Zedruus triggered effect
Cunning counterspells and draw effects, such as Practical Research , are also useful