Six simple rules to develop a strong hero
Rule 1 - gain level at all cost!!!
Always choose quests that bring maximal experience points. Do not care about the gold!
1. When you have higher level you gain more gold from City guard, which fully compensates for the missed few gold coins from the quests.
2. Two main hero attributes strongly depend on level - Hit Points and Critical Hit. About the hit points there is the following formula: Constitution * 4 * (Level + 1). This means that with each level you gain more and more hit points (much more that you could gain buying constitution points). Regarding the luck the formula is Luck * 5 /(Enemy's Level * 2). That means that with each level the probability to receive critical hit decreases. And in most fights critical hits can definitely sort out everything.
3. With each higher level shops will offer better and better weapons and equipment, pumping your statistics way faster, than you could reach by buying points.
4. When you reach higher level the quest rewards also become higher.
Rule 2 - Fill you scrapbook as fast as possible!!!
Scrapbook adds bonus to the experience from quests and guild battles. This experience bonus is added to the guild bonus, so it's normally not a problem when you are in good guild to reach around 130% experience bonus around level 30 or so. Filling the scrapbook unfortunately is a time consuming process. The best way to do it is to make screen-shot for example of the weapons of certain class, then browse the Hall of fame starting from your position and going down, write down every player that has a piece of equipment that you need and underline it in the screen-shot. This way for around 1.2 hour you will have enough targets for attack for a whole day. Better start with the warriors, because they have the most weapons of all classes and will bring you a lot of points, then scouts and wizards.
Scrapbook adds bonus to the experience from quests and guild battles. This experience bonus is added to the guild bonus, so it's normally not a problem when you are in good guild to reach around 130% experience bonus around level 30 or so. Filling the scrapbook unfortunately is a time consuming process. The best way to do it is to make screen-shot for example of the weapons of certain class, then browse the Hall of fame starting from your position and going down, write down every player that has a piece of equipment that you need and underline it in the screen-shot. This way for around 1.2 hour you will have enough targets for attack for a whole day. Better start with the warriors, because they have the most weapons of all classes and will bring you a lot of points, then scouts and wizards.
Rule 3 - Use your mushrooms wisely!
The best appliance for your mushrooms is to buy a good mount. A mount that costs only one mushroom can reduce quest time with 30%. Since with one mushroom you will have a mount for two weeks is it pretty sure that in some time you will gather more than 25 mushrooms. Then it's a good idea to buy a Griffin. Buy it only if you will be active every day of the flowing two weeks, to be sure that you will not waste its valuable effect. Of course if you can afford to buy mushrooms you will want to have the griffin dragon all the time. There is absolutely no point in buying equipment from the store that costs mushrooms. Anyway in a few days when you gain level better equipment will appear. If you can afford to do it use 10 mushrooms every day in the tavern. Also it is not a bad idea to donate to your guild, so the bonuses can also be increased.
Rule 4 - Support your guild!
It's important to participate in all guild battles. If you are in a good guild it will commence attack on a weaker guild every day, so all members will be able to gain a little bit more experience. Donate gold in your guild around 3-5 hour worth of City guard payment. Do not forget that being a part of the guild brings you at lest 50% bonus on gold and experience, even if the guild has no mushrooms.
Rule 5 - Develop your attributes according to your class!
I'll divide the attributes in two groups. Damage attributes - Strength, Dexterity, Intelligence - because depending on your class your attack damage depends on them, and personal attributes - Constitution and Luck. For warriors the main Damage attribute is Strength, Scouts - Dexterity, Wizards - Intelligence. There is almost no need to develop other attribute than the main for the class. It's a good idea to keep a 5:1 price ratio. For example for a scout if one point of dexterity costs 500 gold, you can afford to increase strength and dexterity to 100 gold each. Regarding the personal attributes - I recommend using a 5:3 ratio to the main damage attribute i.e. if one dexterity point costs 500 gold Luck and constitution should cost 300.
Rule 6 - Choose the right equipment!
The equipment should be chosen to enhance the main hero attributes. For example for a wizard a ring that enhances strength is totally useless. The best artifacts are these that enhance the main damage attribute, constitution and luck. Unfortunately they are hardly found usually in the dungeons. The artifacts that enhance all stats are also not bad, but they get obsolete too fast. There are artifacts that increase two stats, but making a combinations with them is not always an easy task. So the easiest way to manage your equipment is to have 1 artifact enhancing your constitution, one enhancing luck, and all others should be directed to you main attribute. Of course you can make exception of this rule when you get nice artifacts from the dungeons pumping all stats, or only the three that are most important.