Yeah, I like the second one better. Allowing interaction and protection seems like a good idea, and makes the card less of a feels bad.
That being said, I think a more thematic effect would be something along the lines of a "Blood Moon" like effect. "Target lands loses all land types and abilities, and gains the ability '{T}: Add {C}". Though this offers less interaction and is a massive feel bad for decks that rely on a land for a combo since it would still be in the field just unusable.
Thanks for this! I assumed this would be the case, but you do get rule oddities in magic, especially in weird cases like this. I can't think of an instance of that either, but I wouldn't be surprised if there was one somewhere.