He can play with lifelink to gain a bunch of life for attackers and then tap for it post-combat to make cheap stuff without spending any mana at all to get started
While a few decks clearly make up the top tier, including Heliod Company and Jund Deaths Shadow, so many other archetypes are competitive that anyone looking to do well in these events will have to bring a strong sideboard built to address several matchups
It has a generic, nondescriptive name, so players dont know what to expectat least Modern Masters tells you what time period to expect cards from, and that youll likely see some familiar archetypes
Also, like Losheel, you can make tokens instantly to draw each opposing turn too, only that's easier since so many token makers like Raise the Alarm are instants already, and lands will make tokens like Castle Ardenvale
If there are five or more cards in your graveyard, exile Jace, Vryn's Prodigy, then return him to the battlefield transformed under his owner's control
Thanks to our Treasure ramp, we often have the option to run it out on Turn 4 but sometimes choose not to, if we expect our opponent to have removal