Book Slam

You touch and imbue your spellbook with arcane energy. As part of the action used to cast this spell, you may either hurl it at one creature of your choice or slam them with it. If you slam a target with it, make a melee spell attack. On a hit, the target takes 2d6 force damage. If the target has the same size category as the caster or lower, it must succeed on a Constitution saving throw or stumble back 5 feet. This attack fails automatically if you don't have two free hands to attack with. If you throw the spellbook at a target, make a ranged spell attack. On a hit, the target takes 1d8 force damage. After doing so, you may use a bonus action to teleport the spellbook back into your hand.

This spell's damage increases when you reach higher Levels. The damage dealt by slamming a target with the spellbook increases by 2d6 when you reach 5th level (4d6), 11th level (6d6) and 17th level (8d6). The damage dealt by hurling the spell at a target increases by 1d8 when you reach 5th level (2d8), 11th level (3d8) and 17th level (4d8).