To make a wooden sword look like metal, you can follow these steps to create a faux metal finish:

1. Sand the wood: Start by sanding the wooden sword to create a smooth and even surface. Remove any rough edges or imperfections, and make sure the surface is clean and free from dust.
2. Apply a base coat: Choose a dark gray or black paint as a base coat. Apply this paint evenly across the entire wooden sword. Allow it to dry completely.
3. Add texture: To create the appearance of metal, you can add texture to the wooden surface. Use a sponge, brush, or a crumpled cloth to dab on a slightly lighter shade of gray or silver paint. This will give the wood a mottled or speckled texture, resembling the look of metal.
4. Apply metallic paint: Select a metallic paint that resembles the type of metal you want to replicate, such as silver, bronze, or gold. Apply thin layers of metallic paint to the wooden sword, allowing each layer to dry before adding the next. Apply the metallic paint in even strokes to achieve a smooth and consistent finish.
5. Add highlights and shading: To create depth and realism, use a small brush and a slightly darker shade of metallic paint. Apply this darker paint to specific areas such as the edges or recessed parts of the sword to create shading and highlights. This technique will simulate the play of light on a metal surface.
6. Optional aging or distressing: If you want to give the appearance of an aged or weathered metal sword, you can add further details. Use a fine-grit sandpaper to gently rub certain areas, creating scratches or wear marks. You can also use a darker paint or ink wash to create an aged patina or rust effect in specific areas.
7. Seal the finish: Once the paint has dried completely, apply a clear protective sealant or varnish to protect the faux metal finish and enhance its durability. This step will also give the wooden sword a slight sheen, similar to the look of polished metal.

Remember to allow adequate drying time between each step and follow the instructions on the paint and sealant products you use. It's always a good idea to test the techniques on a small, inconspicuous area or a scrap piece of wood before applying them to the entire sword.