Radiant Fountain

The two life is the entire pitch, and it tells you exactly who this land is for. A colorless source producing nothing but one colorless mana is among the least exciting things a deck can run, so the entry trigger is the only reason this ever beats a basic Wastes or a tapland that fixes color. That reframes it: not a payoff but an enabler, a land that quietly pads your life total in a shell built to harvest it. In a deck that counts life gained (soul sisters builds, lifegain-matters engines, anything that triggers on the smallest increment), an untapped land that incidentally adds two to the total is a free inclusion. The cost is real and quiet: you give up color fixing entirely, which is why it lives almost exclusively in mono-colored or near-colorless manabases that can spare a slot spent on colorless alone. It belongs to the family of utility lands that buy a small effect at the price of flexibility, and it is the gentlest version of that trade: no damage on entry, no tempo cost beyond the land itself, just two life and a colorless tap. A card for the rare deck where two life is not rounding error but a resource worth a land slot.