Here is a guide on skill,which I take from the other Hero Online website.It may be helpful.If you need it ,just read.Peace.

1. Great Cleave

Great Cleave is most certainly not Sven's most important skill. Killing creeps more quickly serves very little purpose other than pushing into the enemy base, which generally results in you getting ganked and killed. Useful for creeping neutrals, but little else in Hero Online.

Sven strikes with such force that all nearby enemies take damage.

Level 1 - 10% damage is splashed.
Level 2 - 20% damage is splashed.
Level 3 - 30% damage is splashed.
Level 4 - 40% damage is splashed.

2. Toughness Aura

The uses of Devotion Aura are, again, rather marginal. Slightly beneficial late in the game for a nice armor boost, but other than that this hero online gold ability is rather lackluster.Sven is here to pump you up!

Level 1 - Increases base armor by 1.

3. Storm Bolt

Storm Bolt is Sven's most important skill. With it he is able to kill heroes early, gank during the mid game and hold heroes down so he can hit them hero online gold late in the game.A magical hammer is thrown at an enemy unit, (goldceo.com)causing damage and stunning the target for 2 seconds.

Level 1 - 100 damage. (75 with spell reduction)
Level 2 - 150 damage. (112 with spell reduction)
Level 3 - 200 damage. (150 with spell reduction)
Level 4 - 250 damage. (187 with spell reduction)

Cooldown: 8 seconds.

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