Weaver of Currents

A mana dork that taps for two colorless instead of one of its own colors, which is the whole bargain: you pay an extra mana up front, and into a two-color cost, and what you get back is a body that accelerates harder than the green one-drops do. The colorless output is the tell. This was built to feed costs that don't care about color, the kind of generic-mana sinks that want a big number on turn four or five: Eldrazi, X-spells, artifact payoffs, anything that asks "how much" rather than "what color." That makes it a specialist where most ramp creatures are generalists. Llanowar Elves and its kin produce a color you then spend on more green, but two colorless cannot be folded back into casting another green spell of its own accord, so the acceleration only pays off when the deck has somewhere generic to put it. The Snake Druid line and the two-power body are incidental; the design lives entirely in the choice to print a ramp creature whose output is deliberately filtered through colorlessness rather than green. Mana acceleration shaped to point at a specific kind of top end, and correspondingly inert when that top end is not there.