Its one of those mechanics that WotC wont bring back easily for a few reasons
Do note that as an endgame piece, Craterhoof Behemoth comes with a very steep cost (5GGG), so you may want mana generation cards to catch your opponent off-guard before the 8 th turn
Value legends Rashmi, Eternities Crafter and Amareth, the Lustrous turn every cast into extra cards or permanents
Sacrifice after III.) I Search your library for a Doctor card, reveal it, put it into your hand, then shuffle
And once we are there, may as well play one of the better ramp spells that is also a dragon
If you need anything larger or more specific, start to look at custom cabinets