I don't really wanna put some images in here, so I'm just gonna say 2 examples of new swords;
Electric Sword
Made with Electricity (burn coal in a furnace to get one) (8) and a diamond sword.
Does 14 damage.
Throws a lightning bolt when doing right-click on a block or when hitting an entity.
Soul Sand Sword
Made with a stick and soul sand (2).
Does 12 damage.
When hitting an entity, it'll have the Wither II effect on it within 5 seconds.
There are some more, and I'll add some more, so yeah.