It won't turn any land into a basic land or remove the legendary supertype from a legendary land, and the lands won't be named "Island." (6/7/2024) If Harbinger of the Seas loses its abilities, it continues to turn nonbasic lands into Islands
You could even potentially play the card in a nonblue deck if you need a card in your graveyard (for example a sorcery for delirium), which is pretty unusual
I actually think this deck is super strong in a 1v1 space, but getting there with a stack of protection auras seems really tough, primarily because youre often the easiest target to attack for quite a long time
YES 070 Fouineur des Bas-Fonds Snooper of the Lower Depths Broom, Nikaho Privately produced card 2000-
We built up some decks in this world, and ultimately, Ram was still a problem if any cycle of artifact lands remainedwhich makes sense given There's another card in the set, Refurbished Familiar, that is slated to be very strong in Affinity as well