Which units would you replace in the Sylvan castle?

Do Druids have no ranged attacks? I agree that regular Druids have weak ranged attacks, but the High Druids... They can outshoot Demonesses (and these ladies are among the best ranged units) if needed. High Druids have an attack skill of 12 – the highest among level 4 units, and their damage is 9-14. This is not counting the fact that they have strong magic (lightning, stone spikes – a bit weak... but they have a range of 5 cells, and Stone Skin +12 to defense).

I would only increase the initiative of the Haters to 11 (they are usually the first target for the enemy... if they don't get lucky at the beginning of the battle... they risk not even surviving until their turn... their health is weak...).