This is a level (cheap aika gold) 3 skill inAika. Deals X damage and places a debuff on the target for 10 seconds, causing it to be stunned for 3 seconds every time it receives critical damage. Its damage range from 613 to 853.
A very high damage, very fast skill. It would be one of our bread and butter damage skills, unfortunately it's plagued by a long cooldown and is only 1 shot, proccing maelstrom only once. Nonetheless it is the fastest animation of your damage skills and is great for finishing people off, and is a basic win button for 1eve (Aika Powerleveling) 1. Lead with heartbreaker, auto attack for the next 10 seconds (assuming you have black rose on) and they will be permastunned and probably die. Nice in dungeons, works on the non-boss mobs of the 2 party raid dungeon Lost Mines West. The damage scales pretty well, but the main use is the debuff. Get at least 1 level, if you are a damage build you can go the full 3, because it does quite a bit of damage when it crits.
Other Effects: Places a debuff on the target, causing it to be stunned for 3 seconds every time it receives critical damage. This skill works on almost all non-boss mobs, and the critical stun effect can happen from anyone's hits, which means if anyone in your party hits it, it gets stunned. This can happen repeatedly for as long as the debuff lasts. If Heartbreaker's damage crits, the stun is not applied, it must be from the following attacks.