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Miniaturule
(i.imgur.com)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
I know nothing about the collecting side of things and I have cards from like the second generation or so when I got into it. I am pretty sure I have some Black Lotus cards since I was a fiend for Blacks. Are they extremely rare? All my MTG cards are just loose in a big bin in my closet.
$15k
Beta editions of Black Lotus go for about $50,000
Black Lotus is an artifact. It's colorless.
The card itself has black in the name and therefore my 13 year old self would not have made the distinction.
Curiously, very few cards of a color had the color listed in the name. At one point, the only thing that colored a card was the color of the mana required to cast it, or if the color was listed in the rule text.
Some black creatures turned colorless when they hit the table. (Some green cards painted green anything they intereacted with). And blue had some spells that would change other cards swapping out rules targeting colors or land types. So a protection from black could be turned into protection from green or whatever.
One of the seasons got really into color interaction but by then I had gone sober.