Bonesplitter is cute, but Loxodon Warhammer, Argentum Armor, or any Sword of X and Y is preferred
But as an ongoing race
in fact, in Ravnica Allegiance Standard I would have happily replaced the Jace, Cunning Castaway in my sideboard with Yanling, as she is even better against those age-old iterations of Esper than Jace was, since her +2 makes an opposing Thief of Sanity irrelevant
Radiant Grace / Radiant Restraints A cheap aura for your creatures that transforms into half an Authority of the Consuls when the creature dies, Radiant Grace is a reasonable way to slow creature-based aggro decks
Thus, there are four total decks in the game, and any play from the top of your library cards only affect your library
Magic the Gathering - Rivals of Ixalan 2017 - Booster Box - Wizards of the Coast