For Murders at Karlov Manor, Wizards of the Coast comes with a set of four brand new Commander Decks
You can tap a bunch of mana rocks then attack with something meaningless like a Thopter to deal a bunch of damage to something and dig through your deck to find your finishers
Still, these bans hurt a lot of players regardless of their interest in Commander, and that's because of card value - which can be a massive problem for small businesses and sellers who suddenly had to account for thousands of dollars in losses due to the plunge these cards' prices have taken
If you got in on boxes under $190 when those were available in the last few weeks, you may get a chance to flip them for +$40/box at peak hype, and cracking them will be unlikely to cost you much if you need the cards
(This is referred to as 'defeating' the Battle.) One point of damage removes one defense counter, and so on
Im talking about Obeka, Splitter of Seconds