You can join a draft, spend as long as you like building your deck and then play as many or as few matches as you like, whenever you have time
in practice, this often costs less than 7 mana, assuming you have a good attack the turn you play it
Dont worry, they dont lose that card, and you can also send them a reward as a thank you
Modern Horizons 3 Key Details Magic and made-for-Modern designs meet with Modern Horizons 3 : packed with powerful cards, references to and remixes from across Magic , beautiful (and collectible) treatments, and reprinted favorites to expand what's possible in Modern
That ability and effect will occur for every player
The rule for constructed (60 card deck and a 15 card sideboard) is that only one legendary creature by name can be in play and if a second one by the same name comes into play then both cards go to their respective owner's graveyard