Learning Resources Coding Critters MagiCoders: Blazer the Dragon. Use the magic coding torch to code a spell and send Blazer the Dragon on a mythical STEM adventure. The latest addition to the award-winning Coding Critters range, Blazer is great for introducing basic programming concepts to preschoolers. Blazer comes with a coding wand, playset, multilingual coding spell book and multilingual packaging. Requires 5 AAA batteries, not included. Blazer measures 10cm H x 13cm L. 22 Piece Set.