Use this build in-game
Build ID: 762617 - copy and import it in the Deadlock shop
You need to make sure you hit your sniper shots at least 4 seconds before an enemy dies, this is completely dependant on getting ult stacks, as that will be your weapon damage. This build also prioritizes hitting enemies with crows while flying before you melt them, as it'll give you two firerate buffs, more spirit damage, and will lower their resists, causing you to melt.
Recommended ability leveling order for this build