Heartseeker Stats and Upgrades

Rogue Basic Active
Lucky Hit Chance: 50%
Requires Ranged Weapon
Fire an arrow that seeks an enemy, dealing {24% / 26% / 28% / 31% / 33%} damage and increasing your Critical Strike Chance against them by 3% for 4 seconds, up to 15%.
When Heartseeker Critically Strikes, gain +8% Attack Speed for 4 seconds. Double this amount if the enemy is Vulnerable.
Heartseeker also increases the Critical Strike Damage the enemy takes from you by x5% for 4 seconds, up to x25%.
Heartseeker ricochets to an additonal enemy, dealing 75% of the original damage.

Best Aspects To Use with Heartseeker

The best aspects to use with Heartseeker skill in D4 is Accelerating Aspect, which is a Offensive Aspect and can only be used on Gloves, Offhand, 1H Weapon, 2H Weapon (+100%), Ring, Amulet (+50%) Equipment Slots.

Best Skills and Passives To Use with Heartseeker

The best skills to use with the Heartseeker skill in D4 is Puncture, and there is also a strong passive synergy with Concussive.