Kripp's Frostfire Dooley Build

Fire and Ice

What makes this strategy work is that it pairs early game strength with late game disruption. The Burn setup helps win early PvP fights which can often lead to a much smoother run. After all, the longer a run goes, the more difficult the fights get.

Freeze helps play a major role in its late game viability. Having a strong form of disruption can prevent the opponent from scaling their defenses out of reach, and/or delay them from being able to fight back.

The removal of the Rapid Thaw skill (reduces Freeze duration) leaves very little ways for the average build to contest against Freeze, making this even more potent than usual. With the exception of Giant Ice Club, many competitors are in for a rough time.

Ignition Core

Ignition Core is positioned for scaling in this setup, but will ulimately depend on what you find. Without the Omega Ray you may opt for a more rightmost Core setting to allow it to be Charged faster.

Upgrading the Core becomes more or less important depending on its placement. If you plan to scale other Burn items, make upgrading it a priority to have the highest scaling possible.

Kripp found a Turbo enchant for the Ignition Core, allowing it to become a reliable Haste support for the entire build. This is an excellent enchant if you manage to find it. Faster items make a big difference when trying to stack Freeze against the enemy.

Pierre Conditioner

Pierre Conditioner is the premium Freeze support for the build, but it does require a bit extra to be truly effective. A one second Freeze on its own can be a bit underwhelming, so it's important to find a way to extend this duration.

Snowflake is incredible if you're lucky enough to find it, but if not Sapphire will fulfill a similar role.

The Fiery enchant greatly improved the build's Burn output since Pierre Conditioner turns into a fast scalable Burn item. Positioning obviously changes without this enchantment.

Enhancers

Omega Ray and Sapphire are both key components that enable the "Frostfire" Core. The former greatly improves your ability to scale during longer fights while the Sapphire makes Pierre Conditioner exponentially better.

These are both essential as they provide a huge power spike to the build. Without them, you'll need to find other ways to scale your Burn and Freeze durations, or else considering pivoting to more accessible options.

Accelerators

First Aiden and Thrusters give the build a good head start and help to maintain a speedy loop with the Ignition Core. This increases the chance of being able to Freeze the opponent's items before they can even get their first cast.

Upgrading these will make a fair difference in Haste duration and Cooldown reduction. Thrusters may not be worth using at lower tiers, though even a Bronze First Aiden can be made serviceable with Rocket Boots.

Disrupters

Cool LEDs and Isochoric Freezer make up the rest of the disruption package alongside Pierre Conditioner. The Slow spam can go a long way to stalling the board before the Freeze takes over.

Isochoric Freezer is a bit underwhelming on its own but gets significantly better with Sapphire support. If you aren't running Sapphire it may be worth swapping out for something else, unless you've managed to upgrade it to at least Gold/Diamond.

Moth to a Flame

Moth to a Flame gives you excellent survivability against builds that deal more sustained amounts of Damage. The Regeneration can stack up to absurd amounts, giving you a huge edge against Poison and/or other Burn builds.

It helps to have a good amount of Max Health. In this way, even if you're hit by a large burst of Damage, you may have enough Health to tank the hit and Regenerate enough before the following hit can kill you.

Liquid Cooled

Liquid Cooled adds even more Freeze which helps jumpstart the frostbite. Freeze is at its strongest when you can apply multiple stacks at a time. Lesser durations can wear off quickly, but when compiled together can end up chaining before they wear off.

It's worth the upgrade if you find it, as the skill goes from five to ten uses between Gold and Diamond.

Building Crescendo

Building Crescendo greatly improves the Burn output by effectively doubling it once you reach 100%. Despite nerfs, it still only a matter of seconds before you reach full capacity.

Speed is everything, so having access to 100% Crit Chance will be far more impactful than most other skills. Few other Crit skills can compete with this one, so don't be surprised if you end up picking this, even when you already have at least some form already.