Harassing is where the fun begins.
Bloodseeker is usually very slow, but once the movement speed and damage from
Thirst start to kick in, you will be extremely fast, even at early levels like
3-5.
Get boots as soon as possible and
start hitting your lane opponent. This is much easier if he’s a melee hero but
you can harass even ranged heroes if you have some bonus move speed from
Thirst, and make no mistake – those hits hurt when you’re Bloodraged. With
every hit you land, you will get more damage and movement speed.
Most offlaners absolutely hate laning
against Bloodseeker for that reason – it’s very hard to get farm or levels as
he can deny everything and harass them all the time. Heroes like Underlord,
Timbersaw, Tidehunter who are usually very hard to kick out of the lane all
crumble against Bloodseeker.
It’s hard to explain when exactly you
should go for the kill as every game will be different – in some games, your teammates won’t be fighting that
much and you won’t have very high speed in the early levels. Basically, if you
suddenly get a huge boost of speed (meaning there’s a fight somewhere else on
the map), you can instantly get aggressive and start hitting the enemy – this
could often result in a kill if you catch your enemy off-guard.
If you get this huge boost while
you’re in the jungle, you can move towards the mid lane as well – you can
easily kill heroes like SF, Sniper, Invoker (heroes without protective
abilities) if you get enough speed and damage.
Keep in mind that heroes like Lina or
QoP can evaporate you at level 6 as Bloodrage also amplifies the damage you
take. You’d want to calculate their damage well or go on them when their
abilities are on cooldown. Supports with disables rotating to your safe lane
can also kill you easily if you’re Bloodraged and they have some nukes. This is
why you usually want to have Power Treads switched to strength, Magic Wand
charges and eventually Raindrops.