The user is able to partially transform their body into any weapon; with ranged weapons such as guns or bows requiring digested matter as ammo, and in dire situations, the user can even use their own blood as ammo by solidifying it. Digested foods become immensely stronger if used for ammo, as normal potatoes wouldn't be very practical, would they? The weapons formed can be activated for however long the user wants them to be. Additionally, to accompany this ability and make it more practical, the user is able to ingest and digest inorganic matter without injury, enabling them to strengthen the weapons and attacks they generate. Finally, melee weapons such as swords would make the user incredibly agile due to their decreased body mass.
By digesting a large amount of matter at once, the user is able to apply a variety of effects to the weapons they generate. Toxic melee weapons could prove to be fatal if the user manages to pierce their opponent's skin. Flammable ranged weapons could cause their opponent and environment to burn, which would also create a smokescreen, creating a disadvantageous situation for the opponent due to the difficulty of seeing, and an advantageous situation for the user if they wanted to escape or begin to use volatile ammo, which wouldn't require the user to be incredibly accurate when shooting, as explosions would be sure to damage the opponent and the environment on a mass scale.
Some drawbacks to this ability are that the user is still affected by recoil when using ranged weapons, albeit with less intensity. Also, the user is only able to manifest weapons, and not anything that could also be used for defense, like shields or armour. The reason for this is due to 'wrath' mainly being akin to 'offense' to me. Wrath is destructive, violent, and offensive, which is the opposite of protection and defense, which is what shields and armour grant.