Items and Blocks

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Weapons
All Spear-Items. Spears will act like Tridents but without returning to you. Spears will damage mobs and deflect off. Sharpened Sticks can easily be broken, but is the beginning of all Spears. Fishing spears are weaker to mobs but catch fish when thrown into water.

Knives and Swords
Knives that are crafted will help create various recipes like foods, attack/defense, some mining in leaves

Flint Knife

Stone Knife (similar to shears, deals damage)

Iron Knife

Wood Knife

Coconut Knife (Update 2)

Spears
All Spear-Items. Spears will act like Tridents but without returning to you. Spears will damage mobs and deflect off.

Fishing Spears
Fishing spears are weaker to mobs but catch fish when thrown into water.

Ranged and Ammo
Blowgun (Normal, Poison, Flaming)

Misc
Coconut (Coconuts can be used as ranged, melee, and explosive weapons. Fairly weak as a weapon, but can be effective.)

Tree and other related objects
Banana Plank Block

Banana Door

Palm Plank Block

Palm Door