The ultimate brush selection for terrain painting! The Gamemaster: Terrain Brush Kit contains 4 brushes designed especially for painting your XPS foam, styro foam and MDF board terrain pieces. Effect Brush Perfect for painting effects like arcane symbols, bloody bullet holes, and rusted metal on your fantasy and sci-fi terrain. Wash Brush The wash technique is the best way to add depth and shading to your terrain pieces. This brush is the best tool for the job. Medium Drybrush Drybrushing is a huge part of terrain painting. The Medium Drybrush is perfect for more detailed work. Large Drybrush The Large Drybrush brush is great for basecoating or drybrushing the larger areas on your newly created terrain pieces.