Depends on your definition of legal. I don't think the local DA will have a problem with it but the head of the local PGA chapter might have something to say about it.
No. There are cards in the duel decks that are not standard tournament legal.
Yes, Alpha cards are considered tournament legal in formats where they are allowed, such as Vintage and Legacy.
No it's not legal in tournament play. The putter is not allowed to resemble any other object. Also the the putter must have a greater distance measuring from the heal to toe than it does from front to back
yes it is
Yes, but it is below recommended performance for a tournament, as you would be at a disadvantage.
It is 100% free, yes, and legal, too. PrizeRebel doesn't steal the prizes it gives you or anything like that, they are actually buying them with money they earn from ads and whatnot. They also get money every time you complete an offer.
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The legal Magic: The Gathering sets for tournament play are determined by the format of the tournament. The most commonly played formats are Standard, Modern, Legacy, and Vintage. Each format has a specific list of sets that are legal for use in deck construction. It is important to check the official Magic: The Gathering website or tournament guidelines for the most up-to-date information on legal sets for each format.
They're not 'game legal' of course, but perfectly legal to own. Sometimes sheets of them are given out as prizes.
no steriods are not legal in the professional basketball leage.
Yes, MTG Conspiracy cards are legal in official tournament play as long as they are included in the current legal card pool for the format being played.
A tournament legal 'cut' is one that divides a deck into two. Even taking one card is therefore a legal cut, it is the cutting into two that matters, not how many. That means cutting into three is not a valid 'cut' for tournament purposes.