One such card is The Gitrog, Ravenous Ride - a 6/5 that allows players to sacrifice a saddled creature whenever it attacks, which then enables the player to draw a number of cards equal to the sacrificed creatures power, as well as play that number of land cards from their hand onto the battlefield, tapped
Jaspera Sentinel into Magda guarantees a turn three Goldspan, putting the pressure on your opponent fast while ramping you into infinity
How about artifacts in general, like an Equipment deck
Step 3: Protect Gix Gix, Yawgmoth Praetor being on the battlefield is essential for this deck to work
There is something flavorful about a powerful, mystical relic that granted you some power you've never even seen before
Now that I think about it though, generating 2 mana, casting a big creature, and then having even more mana to spend doesn't sound bad for a creature heavy ramp deck