Dota – What makes a good mid-lane hero

The towers will attack enemies in this order:

1. Closest enemy unit or hero attacking a friendly hero with auto attack
2. Closest enemy unit or hero attacking the tower itself with auto attack
3. Closest enemy unit or hero attacking any friendly unit with auto attack
4. Closest enemy unit
5. Closest enemy hero
6. Closest enemy catapult

The tower will switch targets if:

7. The targeted enemy unit or hero dies
8. An enemy unit or hero targets a friendly hero
9. An enemy hero being attacked by the tower manually attacks a friendly unit or hero (in which case, the tower will select a new target based on the above priority order).

Last one is a weird mechanic that got greatly exploited during last few months,if you get targeted by the tower and click attack button and click on friendly creep the tower will start attacking the next target as if you got out of the attack range.It is getting its popularity since it enables you to attack tower with minimum interruptions(running away+running back from the tower range).To me it looks like a major bug since it makes no sense as a mechanic.

The thing that you mostly experience during the game is that you move inside the tower range (while it is attacking another unit), and then click attack on an enemy hero, which will make the tower attack you.

More discussion here and here.

Pudge and Lina both have similar goals as solo mid heroes as they can both snowball into midgame powerhouses easily. However, if they fail to score any kills, they become rather weak.

Neither hero is going to be able to gank too effectively prior to level 6, and so their focus is to get experience as quickly as possible. Lina's only job is to not get hooked by Pudge, and Pudge's only job is to not die. This means that Lina will be getting a majority of the last hits and harassing effectively.

Pudge should be forcing the Lina to stay in a good position for the entirety of the laning phase: his opportunities will come during rune races or when Lina does something dumb. Regarding rune races, this is where the matchup is most volatile. Both heroes should be picking up a quick Bottle, and Lina with her ability to dominate the matchup should also have rather quick Boots. Her best option is to nuke down the wave at about 1:45, 3:45, 5:45, etc. and force Pudge to skip experience to contest runes. By doing this, she can force the Pudge to take risks if he wants to have any say in the lane.

However, the Lina also has a choice: she can attempt to gank sidelanes, or she can continue to keep the Pudge weak mid. If she leaves to gank (obviously call attention to the miss immediately), the Pudge should be using that time to pick up much needed gold. After he hits level 6, he can start moving around the map constantly and leave mid to others who can use the opportunity.

Pudge is all about momentum. A skilled Lina will shut that down at the beginning of the game by not being in a position to get hooked, but she can't control your roaming. Pudge can really take advantage of the night time (between minutes 6 and 12, 18 and 24, 30 and 36, etc.) to land hooks on opponents who can't even see him. As long as you don't die repeatedly in mid, that opportunity remains open to you.