I've been looking a few things over for the Arcane Wizardry decks. Riptide Laboratoryis pretty neat and spiked heavy in price, however isn't Endless Sands better? Saves you from hand hate plus you get to drop quite a few Wizards that helps ETB triggers. It would suck if the opponent is running land destruction but that's not the case in my play group.
I run both cause I've seen how good Endless Sands can be to kick start combos again.