Swordspear

Weapon

Varies

Heavy, Parry, Reach, Versatile(1d10)

Similar to a spear in overall length, but with a larger blade. This sacrifices its balance, hence its ability to be thrown, and makes it far more difficult to wield. It makes up for this with high damage output and versatility.
The thick, long "spear tip" allows for large, slashing attacks in addition to the normal piercing strikes of a spear.

Complicated Properties

Parry. As a reaction, gain 1 AC for 1 incoming attack that you can see.

Reach. Weapons range is extended by 5ft.

Versatile(1d10): Can be 2-handed to increase damage from 1d8 to 1d10, also changes damage type.