black lotus mtg card Sleeves 100CT (Crimson Lotus), Matte Art Card Sleeves, Matte Back & Clear Front, 66x92mm : Toys & Games ArtifactCard Type Black Lotus - MTG Wiki

The reasons for this are numerous and intricate, but the main thrust is that Creature combat matters a lot more in Limited

Ultimately, it's better as an attacker, but don't worry about keeping it protected if it's ever targeted for removal

The fact that creatures cast with Warp stick on the board until end of turn may trick you into forgetting they will be exiled, especially in Arena or in clustered board states

the latter being even more impressive due to the emergence of Pooh Burn (the anti-Oath red deck) and more importantly, the Your Move Games Hall of Fame duo of Dougherty and Kastle with Black-Blue Trix (both would make Top 16 in Seattle and Top 8 later in the season)

Gaining two life is incredibly relevant as well, and anytime this gets flashed back by a Torrential Gearhulk, the game will have a devastating momentum swing

In fact, if you play with friends who are all comfortable with each other as Magic players, you could ignore the whole bracket system altogether