Obsidian Swords
Dragonop

Adds the Obsidian Dagger, Sword, and Longsword. Also Obsidian tools, for completeness.

Spears
Echoes91

Adds spears, versatile weapons that can be thrown.

Power Rangers Modpack
LC Creations

Adds power rangers and an API to create your own.

Lifesteal Mod
J05629

Provides a lifesteal mod into Minetest.

Skeletons
SFENCE

Add player and some animals skeleton to your game.

Armor Expanded
Crystalwarrior

Expanded armors for 3d armors

Death Compass
FaceDeer

A compass that points to the last place you died

Projectiles
Noodlemire

Adds various projectile weapons which work based off of MT 5.3.0's new collision info provided to objects' on_step functions.

Ocular Networks
PolySaken

Draw power from the world, and use it to power machines and tools.