Trickster's Elk You want to say Trickster's Elk is like removal, and granted, switching off the busted activated abilities on a key creature is impactful in a singleton format, just make sure you don't care about your opponent controlling a non-flying 3/3 because you might accidentally improve an opposing creature with +1/+1 counters
Beatdown decks with powerful monsters like Summoned Skull, fan favourites and powerful game-changers like Heavy Storm and Dark Hole were the name of the game
The new Boseiju, Who Endures has a fantastic channel ability that you might want to use later in the game after youve used it for mana
During the end step, you can't perform actions at sorcery speed like playing a land, casting a sorcery, or casting non-flash creatures (unless there's some effect in play, like Teferi, Mage of Zhalfir, that gives some of your cards flash)