Mana Doubler

Permanents that increase the mana your existing sources generate, either by replacing each mana with two or three, or by adding extra mana whenever you tap a land. Nyxbloom Ancient triples your output, Mana Reflection and Zendikar Resurgent double or echo land production, and Vorinclex, Voice of Hunger and Mirari's Wake add mana on each land tap. Distinct from Mana Rock and Mana Dork, which produce their own mana from scratch, these instead amplify whatever you already tap. Also separate from Land Ramp, which adds more lands rather than multiplying the mana each land yields.