Tough 3 Dota All-star hero

There are no simple best heroes because every hero works differently but there are some heroes that simply outclass others.

my top 3 hero is : magina, troll, n rikimaru. they are very fast

Sadly enough, Zeus can't solo well when facing stunners/disablers. Heroes such as Lion and Pugna can easily confront Zeus, and late in the game, Zeus is a food for most heroes. Sven in the other hand, is deadly, can stun, dangerous early and late game, but also has weakness. Like all other weaknesses of melee heroes: Blade Mail. I would agree with Vengeful Spirit, although she also has weaknesses, but she is a team player, can stun and has high damage early in the game.

Every hero in Dota is balanced it depends on how you use them. You can experiment for a new combo even if you use the techies. Try use techies and Pudge or Vengeful Spirit. Plant at least 6-7 remote mines then let Pudge or Vengeful Spirit to stand beside the mines. When a hero was hooked by Pudge or swap by Vengeful Spirit then detonate the bombs. Kaboom!! You just pawned an enemy with your combo.

the three best heroes in dota is no other that jharakal,sandking,and kardel

I think you have mentioned 4 heroes in sentinel side. LOLZ. For me the 3 toughest hero in dota is razor , lanaya , treant protector. Why? Because as you can see in all aspect these hero can survive even if it is 1v1 or 2v2 or 3v3 or 4v4 or 5v5. They can stand alone on their own. Why then razor? Due to his aura of fast regeneration and movement speed this hero can easily escape nearby gank of an enemy. You can even save items you want to equip with it. Just a bottle and a crow will let him farm and survive long enough for him to have good equips. Why lanaya? Hard to kill, dominate in lanes and have high damage. Hard to gank because of his ultimate which can be used as an observer. Why treant? High armor , enable him to heal himself , can hide and has eye which helps him to see more of the map. This are my 3 toughest hero. God bless!!!