Rainbow Vale

A rainbow land with a lease attached. The fixing is unconditional: tap it for any color, no life paid, no enters-tapped friction. The catch is on the back end, and it is one of the stranger ownership clauses ever printed: at the next end step, the land walks across the table to an opponent. Tap it on your own turn and you lose it at your end step; tap it on theirs and the donation fires that same turn. Either way, the moment you spend the mana you start the clock on losing the land. That single restriction reframes the whole card. This is not a permanent in your manabase; it is a one-turn rental that you spend before it spends you. The intended line is to cash in the mana, then bounce or sacrifice the land before the control change resolves, or accept that you have just handed the enemy free color access. Sacrifice outlets and bounce effects do not merely add value here: they convert a liability back into an asset, closing the window before the donation resolves. It rewards a deck built around using a single perfect mana right now, the splash spell, the off-color removal, the one-shot combo piece, and then disposing of the evidence. Strip the donation clause and this is a clean five-color land; with it, the card belongs to an older school of design that priced raw fixing against a real, recurring cost rather than a fixed downside. The result is a fixer that demands a plan before you ever tap it.