Wielding heavy weapons naturally trains your arm strength. However, if they are ''too'' heavy, you may not be able to use them at all.<br>

Drinking a bottle of [[Ommel Urine]] is an easy way to artificially increase your Arm and [[Leg Strength]]

Replacing your arms with prosthetics made of inorganic materials will instantly boost your Astr based on the material used, at the expense of not being able to heal them naturally.<br>