Bennie Bracks, Zoologist Card draw on your end step is great, but each end step
The Structure: Features a non-slip Exo-Tec material on the outside and a high-grade soft lining on the inside
Its pretty easy to imagine you getting your four mana back with the token you create
You have to find to sacrifice the egg, or just lose it in combat, after which you might be placing something like a Craterhoof Behemoth or Blightsteel Colossus into play for free
As for improvements on the deck, I'd suggest that Wizards was pulling only a few punches with this one
Plenty of brewers have dogpiled the likes of Vampiric Tutor and other top deck tutors, but nobody can deny the ability of the granddaddy of them all and my number two card, Demonic Tutor