3.29 Blight of Contagion Trickster Leaguestarter to Endgame

Blight of Contagion Trickster is an incredibly fun clearing-oriented chaos DoT spell build. It has an incredibly strong start with the downside of weaker Super-High Budget scaling. It makes up for this in a big way though by being able to run almost every map mod in the game, circumventing annoying mechanics like temporal shields, and a buttery-smooth clear that is very addicting.

We start out in act 1 using regular Blight and transitioning into Essence Drain Contagion. This is a classic combo that is surprisingly still decent till this day.

From there you can either buy a Blight of Contagion gem ASAP or run lab yourself and sell other transfigured gems you get for profit until you get one. But I recommend just buying it as it becomes available.

Once you reach act 9-early maps you pick up a Cane of Unravelling for a Chaos orb or two and this weapon will take you all the way to t16's.

Scaling into endgame we transition into Chaos Inoculation around 5-6k Energy Shield and look towards a 2 mod ( spell damage/chaos damage + Chaos dot multi )Cane of Kulamak. Later on Looking for a 3 mod cane ( Spell damage/Chaos damage + Chaos damage over time multiplier + +3 to the level of Socketed support Gems ).

Everything here is still the same as before for 3.29 with the only change being you want to add in Pact of Ghorr ASAP

For clear you cast Contagion then Blight of Contagion, this will spread in a fairly large area and very often between packs. Although Blight of Contagion is a channeling skill that stacks on monsters up to 6 stages; when it is spread with Contagion the overlaps will stack the debuff to 6 instantly in clear-scenarios.

For single target we add in Bane linked to Despair to apply the curse, along with a Wither Spell Totem Support setup to apply our wither. After that just channel Blight of Contagion and watch the boss melt away.

Blight of Contagion Is a channeling chaos damage over time spell that stacks its debuff up to a maximum of 6 stages. This debuff can be spread by Contagion for clearing packs. When it chains via Contagion the debuff stacks each time it spreads so you really only need to tap Blight of Contagion for full effect in clear for most cases.

Early on when still using Arcane Surge Support its important to have the copy linked to Blight of Contagion leveled up and the copy linked to either your Flame Dash or Contagion at level 1 so you can maintain the buff easily. Leveling up this second copy is a common mistake and will cost you a lot of damage so make sure to leave it at level 1!

3/5/2026 Added for 3.28 Mirage League