Dominaria

Damping Sphere | Artifact | | If a land is tapped for two or more mana, it produces {C} instead of any other type and amount. Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn. | Adam Paquette

Shield of the Realm | Artifact | Equipment | If a source would deal damage to equipped creature, prevent 2 of that damage. Equip {1} | Manuel Castañón

Urza's Tome | Artifact | | {3}, {T}: Draw a card. Then discard a card unless you exile a historic card from your graveyard. (Artifacts, legendaries, and Sagas are historic.) | Aaron Miller