Marked Cards, Legality

[Rass]

Yes and yes. But if a sb card holds value, players may not want to sharpie it.

I was talking about the sleeve clear side.

[Hays413]

Or do what I do, different colored sleeve with a junk card and a price of paper with my sideboard on it. Quick and easy.

Ok this sounds odd and possibly usefull could you please explain this better?

Just take a spare sleeve, grab a land or token or something. Put er in the sleeve. Then write down your whole sideboard on a piece of paper, put er in the sleeve. Keep it with the deck. Then when your going to remove your sideboard and reset, just look at the list and match it up

[Jdogtoocool]

Ok I got ya thanks