If WotC were willing to risk permanently and dramatically changing all future games of Magic by introducing Companions, then there shouldnt be much of an argument about making single-use, bankable mana tokens a part of most every game going forward
Not only do a number of characters, songs, and actions cause your opponent to Discard cards, but some even have abilities that give you a bonus for opponents having fewer cards in their hand than you
you need no account or internet to get designing
Or, you can swarm the board with Goblins thanks to Empty the Warrens, or you can go classic and Lightning Bolt everyone instead
Torpor Orb | Illustration by Svetlin Velinov Stax cards impede your opponents development through various means , such as forcing them to sacrifice permanents, taxing them, making cards enter tapped, and simply having the text players/opponents cannot do X. Many players believe the term comes from Smokestack, a key card of the original stax list, and to some extent that's true