I dont think these are the major issues that people have taking out powerful game changers
Liliana Vess allows the player to force their opponent to discard cards, allows them to search their library for a specific card, and can return all creatures in both player's graveyards to the battlefield under their control, flooding the board with creatures for a huge swing, which will often lead to the end of the game
Jhoira, Weatherlight CaptainJhoira, Weatherlight Captain - This makes me nostalgic for a time when artifacts were king, and Magic was a lot less fair
Two-Headed Giant Some stores also support a version of Sealed Deck called Two-Headed Giant (often abbreviated "2HG"), where two players team up against other pairs of players
You can also tutor this land reliably with cards like Nature's Lore and Skyshroud Claim, as it has the forest subtype
Overall I think Bontu ends up being the ideal top end for our aggressive deck, but if I was expecting to play against lot of midrange creature decks like Monsters I would probably work some Phoenix back into my 75 because it is great at offense and defense there