Even some cards that are the standard size might not fit if they are too thick
This is a pattern that you can see in most of my midrange decklists my sideaboards usually tend to have about 2-3 additional value cards the reason is that you cannot have infinite of those cards in your main deck because then you dont have space for certain cards that your deck just needs to contain and instead you get into a scenario where you chain card draw into card draw without getting anywhere and lose but post board not only the games tend to be slower and longer, you also already know what you are playing against and can set up your deck accordingly which means that having additional value cards to go with those is priceless
What Is Black Bolt
P/T Number 546 Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) You pay all costs and follow all timing rules for artifact spells cast with the permission granted by Noctis's last ability
Wizards sometimes has special singleton events with their own unique rules, but these arent official and often only last for a few days at a time