Greenhouse // Rickety Gazebo

Two effects green almost never gets to share a card: universal mana fixing on one door, graveyard-fed selection on the other. Greenhouse turns every land you control into a five-color source, the kind of blanket fixing green usually has to earn with basics-fetching or a dedicated mana creature. Rickety Gazebo pays its own separate cost to mill four and rebuy up to two permanents, self-mill that green can actually use as a dig rather than as fuel for a reanimation payoff. The split matters because the doors unlock independently and stay unlocked once opened, so the enchantment is really two spells sharing a slot, each castable on its own timeline. You are never forced to want both at once: you pay for whichever door the board asks for. The mill-then-return language reads as a floor, not a gamble; whatever you bin that you cannot use stays in the yard, and the permanents you want come straight back to hand. That makes the Gazebo half a low-variance grab for whichever permanents you happen to mill, wearing the costume of a horror-flavored self-mill effect. Two clean green staples, priced separately, occupying one card.