Gathering Place - Marvel Super Heroes (Rare) [MSH-266]

Gathering Place is a utility land from Marvel Super Heroes that taps for colourless mana without restriction, or for green or white mana under more specific conditions. To get the coloured mana, it needs to have just entered the battlefield this turn or you need a basic land in play, so it won't stall out even if your basics get stripped away later. This fits naturally into Selesnya decks that want fixing early without losing tempo, since the colourless option is always there as a fallback. The main downside is that outside of those two conditions, it's just a colourless source, so it isn't a guaranteed green or white rock in the later stages of a game if your board state has changed.