Strength

is one of the eleven core player Statistics. It plays a major role in determining the damage dealt by the player.

Increasing Base Strength
At the start of the game, players have a base of 0. It can be increased by:
 * Leveling the Foraging skill
 * Turning in Fairy Souls to Tia the Fairy

Increasing Bonus Strength
There are several ways to gain additional bonus.
 * Certain Weapons
 * Certain Armor
 * Certain Accessories
 * Certain Pets
 * Reforging items
 * Strength Potions
 * Weird Tuba
 * Training Weights
 * Wood Singularity
 * Power Orbs
 * Mana Flux
 * Overflux
 * Plasmaflux

Formula
The formula for calculating damage dealt (Effective Damage) is as follows:

$${\left\lfloor{(DMG + 5 + \left\lceil{\frac{STR}{5}}\right\rceil) \times (1 + \frac{STR}{100})} \right \rfloor = Effective Damage}$$


 * DMG: damage
 * STR: strength (including base strength)

Formula example: You're using an Aspect of The End that has 100 damage and 100 strength. Your base Strength is 23. DMG will then be 100 and STR will then be 100 + 23 = 123.

$${\left\lfloor{(100 + 5 + \left\lceil{\frac{123}{5}}\right\rceil) \times (1 + \frac{123}{100})} \right \rfloor}$$ $${= \left\lfloor{(100 + 5 + \left\lceil{24.6}\right\rceil) \times (1 + \frac{123}{100})} \right \rfloor}$$ $${= \left\lfloor{(100 + 5 + 25) \times (1 + 1.23)} \right \rfloor}$$ $${= \left\lfloor{130 \times 2.23} \right \rfloor}$$ $${= \left\lfloor{289.9} \right \rfloor}$$ $${= 289 = Effective Damage}$$

289 damage (Higher if you take into account crits, your combat level, and potions)

力量