No, it is not. You can still use it in legacy, just because it isn't reprinted doesn't mean that it is "illegal".
No, the card "Black Lotus" is not legal in Magic: The Gathering tournaments.
No, Magic Cylinder is not currently banned in the official TCG banlist. It is a legal card to use in most tournaments and games.
The magic card is sponsored by Master Card.
Magic Reflector is a Normal Spell Card and goes to the graveyard after the chain resolves, meaning it would not be much use if its protective effect ended right then.What Magic Reflector and Card Guard do is set up 'lingering effects' on the token they distribute, that are no longer dependent on the card that set it up. So Card Guard can leave the field, and the token will still work.
Yes, altered art cards are legal in Magic: The Gathering tournaments as long as the card's name, mana cost, and artwork are recognizable, and the altered card is not marked in a way that could be used for cheating.
The official ruling on the Nexus of Fate card in the current Magic: The Gathering tournament format is that it is banned in Standard and Historic formats, but legal in other formats like Commander.
As of the current Magic: The Gathering rules, Cathars' Crusade is a legal card that can be played in the game. It is not banned or restricted in any format.
yes
Of course, unless the effect specifically requires the target to be untapped.
Card
Yes, attackers attacking a Planeswalker can still be blocked by the defender's creatures.
there are some card shops but to magic the gathering shops in perticular