Dota 2/Sven the Rogue Knight

Sven is a melee strength hero who can play the role of support and initiator as well as a semi-carry, due to his ability to have a high damage output without depending on items. His Storm Hammer is a decent disable that can affect several enemies at once, while his Warcry is a great support skill. He also has a built-in Battle Fury with his Great Cleave. Finally, Sven's ultimate, God's Strength, let's him do a humongous amount of time for the period it's active, potentially letting him match the damage output of a carry.

Storm Hammer
Storm Hammer is a targeted projectile that stuns the targeted unit and enemies in a small area around it. An excellent disable, it is capable of stunning multiple enemies with a single strike, making it a decent initiation tool. It's not advisable to use it for harassment though, as during the laning stages you don't have a large enough mana pool to use it liberally.
 * Ability: Target Unit
 * Affects: Enemy Heroes
 * Damage Type: Magical
 * Damage: 100 / 175 / 250 / 325
 * Stun Duration: 2
 * Radius: 255
 * Mana Cost: 140
 * Cooldown: 15

Great Cleave
Great Cleave makes Sven's attack deal cleave damage to units near the enemy he's attacking. Cleave damage is not affected by armor. Basically, it's like having a Battle Fury with a smaller radius but one that deals more cleave damage. Not very useful if you are a support but it does help you farm if you are playing as a semi-carry.
 * Ability: Passive
 * Radius: 300
 * Cleave Damage: 20% / 35% / 50% / 65%

Warcry
Warcry grants bonus armor and movement speed to all allies near you for 7 seconds. A very good buff that lets your team initiate a teamfight while holding the upper hand. Its mana cost is quite cheap, and you can sometimes cast it just to use the bonus effects to tank and escape a bad situation.
 * Ability: No Target
 * Bonus Armor: 4 / 8 / 12 / 16
 * Bonus Speed: 12%
 * Radius: 900
 * Mana Cost: 25
 * Cooldown: 36 / 30 / 24 / 18

God's Strength
God's Strength greatly increases Sven's damage for 25 seconds. A very, very powerful buff that can let you match the damage output of a hard carry. You'll be doing more than twice you normal damage, and with your great strength and agility gain, you can temporarily play the role of a carry as you tear through enemy heroes.
 * Ability: No target
 * Bonus Damage: 100% / 150% / 200%
 * Mana Cost: 100 / 150 / 200
 * Cooldown: 80