Item actives like Eul's, BKB and Shadow Blade trigger Fiery Soul stacks, so pop one before a fight to start with stacks rolling.

At level 1 Dragon Slave secures ranged creep last hits while simultaneously harassing the enemy mid laner.

With your 670 range you can get a free hit from fog or max range without drawing creep aggro.

In the early game she can kill most heroes from 70 percent HP with a full spell rotation plus Laguna Blade.

In the late game with Fiery Soul stacks she transitions into a right click monster who can manfight carries.

The early BKB timing matters because good enemies chain stun you in fights.