Burn baby burn, Disco Infernus

General buy order for lane
Extra Regen only if you need it
Get Extra Stam if/when you need it.

Get Enduring Speed when you start moving around the map more.

Sell Rapid Rounds if you need to.

Crippling if you need damage
Otherwise go Leech
Sell Enduring Spirit if you need to.

Buy what you need
Superior Stam can help if they have Slowing Hex.

This is a late-game hypercarry build that leaves you pretty squishy
But if you play it right, you can kill anyone in the game confidently
Toxic Bullets, Ricochet, and Leech are the big power spikes.

(1) Your survivability is entirely reliant on outhealing enemy damage and being slippery with Flame Dash and Ethereal Shift
- (2) Position smart and play around your Flame Dash CD
Be aware of enemy crippling abilities and Slowing Hex
- (3) When a fight breaks out, apply burn ASAP
Failure to do it quickly enough means you'll die before you can keep a steady healing stream
- (4) Be aware of enemy burn status and keep refreshing it
It only takes 1 bullet to refresh the duration, but if it wears off you have to build it up again.

In lane, use Infuser once you've applied burn to an enemy
Don't use active reload when you don't need it
It's most useful before a fight starts for the fire rate buff or in the middle of a fight for more bullet uptime and healing
Using Fleetfoot during Flame Dash does NOT increase your movespeed
Ethereal Shift has a lot of good uses; I'll list a few here
Use it just before a delayed ability goes off (Wraith ult, Seven stun, Bebop bomb)
If you're low in a fight, pop it and stall for healing, Flame Dash CD, or a bail out from your team, or use your ult first, wait for the stun, cancel Ethereal Shift, and Flame Dash out.