Yurlok has a very silly way to damage all your opponents this way by tapping to give three mana, one black, red, and a green mana, to all players
(Artifacts, legendaries, and sagas are historic.) A card, spell, or permanent is historic if it has the legendary supertype, the artifact card type, or the Saga subtype
MTG players have been quick to realize just how powerful Baylen, the Haymaker will be
Tip: The more hate your opponent has, the fewer actual cards they have to further their own plan
To get a better picture of the strength of Tasigur, check out Sams article and Aris discussion of him as well
The biggest themes of the deck are direct damage and creature destruction/resurrection