(taking the way back machine here, and my memory is fuzzy on this.) I seem to recall that a card that was "modified" by the games designer was tourney legal. I knew we played with them years and years ago when Richard Garfield hung around WotC a lot, he did some pretty funny mods to cards (One I remember was him taking a CoP: <something>, crossing out "<something>" and replacing it with the word "Everything", and making it "1W: Protection from Everything" . Selfish reason for this question, not that I expect anyone here to believe me: I have an out of the pack Alpha Black Lotus (A guy I know bought a few alpha packs (ok, yes, I AM old....) and pulled this, and went over and had Garfield mark it up, and he made it produce 13 mana instead of three. As soon as I saw that card, I bought it for a lot of money at the time (I think $50, but this was when moxen and stuff were going for $20 or so, and people were calling them crazy for paying so much for them, lol). ...but the important thing was that I had an onion on my belt, that being the style at the time. End rambling story.