Bloodmark Mentor eternally grants all red creatures you control first strike at two mana
There is still a lot to understand and learn in the game, however, with a lot of associated game mechanics - like ink, lore, and glimmers - intermixing, with even more to come when new chapters are released in the future
Because of the newness of the format, it's really difficult to learn much from these bannings, and things are further complicated by the fact that in the early years of the format, Wizards used a restricted list (much like we have in Vintage today, where you can only play one copy of a restricted card in a deck) alongside the banned list, and while many cards were restricted in the early years (Balance, Fork, Zuran Orb, Black Vise, Land Tax, Hymn to Tourach, and Strip Mine), only two were outright banned
you know what youll be playing because you already saw what the top card of your library was