Characteristics

The four main ones

Characteristic	What it gives
Body	Health, its regeneration, bonus damage of blows
Reaction	Attack and defence, speed of blows and running, sight
Mind	How fast experience grows, sight, power of spells
Spirit	Mana, its regeneration, protection from the elements

Levels do not raise characteristics. They grow only from elixirs (+1 an elixir) up to the class limit, and gear adds on top of the limit. An elixir of a characteristic already at its limit cannot be drunk.

How the derived values are counted

Each derived value is a sum of contributions. The table below holds the very rules the server counts by (a hero and a creature differ in some of them).

What	Contribution	For
Health	17.7778 × Body	heroes
Health	6.6667 × Body	creatures
Health	60 × Level	heroes
Health	22.5 × Level	creatures
Mana	30 × Level	all
Attack	0.5 × Level	all
Defence	0.5 × Level	all
Health Regeneration	0.0888 × Body	heroes
Health Regeneration	0.0333 × Body	creatures
Mana	17.7778 × Spirit	all
Mana Regeneration	0.1778 × Spirit	all
Attack	0.4444 × Reaction	all
Defence	0.4444 × Reaction	all
Damage	0.5 × Body	all
Attack Speed	0.8	all
Attack Speed	0.0067 × Reaction	all
Movement Speed	280	all
Movement Speed	4.4444 × Reaction	all
Vision	800	all
Vision	8.8889 × Mind	all
Vision	4.4444 × Reaction	all
Fire Protection	0.2222 × Spirit	all
Water Protection	0.2222 × Spirit	all
Air Protection	0.2222 × Spirit	all
Earth Protection	0.2222 × Spirit	all
Astral Protection	0.2222 × Spirit	all
Damage Dealt	1	all
Damage Dealt	1.6667	creatures

What they mean

Attack against Defence decides whether a blow lands (see How combat works).
Armour is taken off physical damage.
Protection from an element is a percentage cut from magic damage of that element.
Sight is the radius in which the hero sees through the fog of war.