As for the Seal Online skills, each of the separate classes seems to have skills taken from their opposite side only to be unused. Warriors have area of effect skills but no where as near as good as a Knights, Knights have one on one skills but no where as good as a Warriors.
Mages can use either ice or fire skills both with their advantages and disadvantages depending upon what monsters your going to be fighting. While Jesters have their choice of throwing darts or using comboing skills they tend to be very expensive.
Priests and Craftsman have their mix of skills that can lead to much confusion, should you choose the melee skills but not be quite as effective as a Warrior or Knight? Or should you choose the supportive skills and be required to spend fairly large amounts of Seal Online Cegel the games currency?
What's interesting though is that sleeping, selling, trading, upgrading, pvp and fishing are skills you learn from NPC's though you spend no sp or skill points in acquiring them, and you can even manual fish using your mouse which can be both fun and provide you with good items.
Combat is a section in itself, being based off the players attack speed or aspd, the player attacks either fast or slow accordingly. While it is a point and click game later on in the game you'll soon find out that'll you'll be heading your mouse or fingers over to the hotkeys and carefully watching your hp(health points) and ap(ability points).
Interesting enough each useable item and skill has it's own speed, meaning that there is some delay between using them but it is not always specific since it depends upon the power of the item or Seal Online Cegel skill. Some powerful potions have enough of a delay between using them that it makes the player cautious about how many enemies they try to take on at once.
As for skills a player has to pay attention to how much ap the skill takes out when they use it so as to not run out or they may end up in a bad situation if they can't use their skills to escape from it. This is no expection for pvp either, basically you must choose your opponents wisely as someone with faster attack speed or faster skill speed will most likely end up with you dead.