(Until your next turn, that creature can't attack or block and its activated abilities can't be activated.) If a card has no mana cost, its escape cost is an unpayable cost, so you can't cast it for that cost
You can only use this effect of "Harmonizing Magician" once per turn.
There is no room in determining card condition for sentiments like its in great shape for an old card or, that card is always off-centered, but this one is perfect other than that. Nope
Collectors can pull jersey or autograph cards, but they do not fall very often
For example, a PSA 10 card can sell for multiples of the same card graded PSA 8 or 9
1 Trainer card that sold for $90,000 at auction earlier this year, the card has no actual use in competitive play