The most common way to use a Proxy card is for playtesting
For four ink you have your opponents discard two cards from their hand, putting them straight into their discard pile
that marks this out as a Shadowless card, which again contributes to its value
Perhaps you're a talented Magic player, or a total novice with nothing else to do on a rainy afternoon in a town where you're just passing through, but either way, if you're going to play, you're going to need the right cards
Its just too mana intensive
Number 301 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (6/23/2020) If you have no cards in hand, you still exile three cards while resolving Chandra's first ability and you may play them this turn