All castles in Heroes 3.

Well... I wouldn't say that magic in the Castle is very important.... I never spend extra resources on the guild until I build a 5th-level guild; by then, I'll already have spellbooks with elemental magic:D Just kidding, but there's some truth to it. IMHO - a guild above level 2 in the Castle is useless. It costs a lot of resources, but the benefit is ZERO, since all the NECESSARY spells are found on the map, and very quickly (acceleration, slowing, blindness, arrows...). I understand - if there was implosion at level 5 in the Tower :rolleyes: ...but as it is... there's little point to their spells.