Quickleaf
Legend
I like it! Especially how you broke down the damage it inflicts.
When I designed a 'sword and pike' solo banner for my PCs to face, I gave it 2 unique traits - First it could change its shape to model different tactics and these had associated benefits/consequences. Second, the banner had an encounter overwhelm attack (I think it recharged when bloodied), which allowed movement which pushed PCs out of the way and granted several attacks.
When I designed a 'sword and pike' solo banner for my PCs to face, I gave it 2 unique traits - First it could change its shape to model different tactics and these had associated benefits/consequences. Second, the banner had an encounter overwhelm attack (I think it recharged when bloodied), which allowed movement which pushed PCs out of the way and granted several attacks.