The heal from Bloodrage triggers on any unit death nearby, not just your last hits.

When you Rupture someone, immediately drop Blood Rite on their position.

If you suspect an enemy is invisible, drop Blood Rite on their last known position.

Force Staff is great on Bloodseeker to push a Ruptured target back into your team.

Aghanim's Scepter lets you Rupture two targets with reduced cooldown for teamfight lockdown.

Maelstrom into Sange and Yasha gives farming speed, movement speed and survivability.