Foretold from Amonkhet is still played in some Modern decks with colossal success. However, this only applies to blue decks.
Fires of Invention offers something similar, but for red decks. You can play this enchantment on turn four and immediately play another spell, which costs four mana, for free.
On the next turn, you can play a land and cast two spells that cost five mana for free, and so on. It turns out to be a reliable ramp card, which quickly breaks in Modern.