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GuildrunBuild

Hero

Gustav

Mystic

The Analyst

Gustav's Blizzard is Frost first and damage second: it slows everything inside it for five seconds while shielding your heroes in the same area. He has the largest mana pool in the game at 150, so he casts rarely and the cast has to matter — position it where the enemy front line will be, not where it is.

Base stats

Health
700
Defence
30
Attack
22
Crit
15
Magic
0
Range
3
Max mana
150
Mana regen
8

What Gustav gains per rank

A hero climbs C → B → A → S — 3 upgrades in all. Every stat rises at the same rate on every hero, with one exception: the primary stat of the class rises three to four times faster. For Gustav that stat is Mana regen.

Stat gains per rank and total from C to S for Gustav.
StatsPer rankC → S
Health+12.5%+37.5%
Defence+8+24
Attack+6+18
Magic+6+18
Attack speed+5+15
Crit+4+12
Mana regenprimary+4+12

Health rises as a percentage of base health; every other stat is a flat addition. The specialization is chosen at rank B, and the class modifier pools open at A and S.

Starting ability

Blizzard Active

Create a Blizzard for 5 seconds. Each second, inflict 2 (+1 per 8 Mana Regen) Frost and deal 15 (+50% Magic) damage to enemies inside the Blizzard. Shield Heroes inside it for 10 (+75% Magic).

Specializations

A hero unlocks one of these at rank B. The choice is locked for the run, and it decides which role the hero ends up playing.

The Investor

The Investor Passive

At start of combat, spend 4 Shards to give Gustav an Investment. Give all Heroes 2 Mana Regen per Investment. Backup. Every 5 Investments, gain 30 Shards.

The Glacier

Extra classes it can gain: Tank

Gain the Tank class, 40 Defense, and -1 Attack Range.

The Glacier Passive

Blizzard applies 75% Defense more Shields and always targets Gustav. After Stall (25 and Stall 50), permanently gain 2 (+2 per Rank) Defense.

The Avalanche

The Avalanche Passive

On cast, gain 1 Shard. On Shards generated, gain 1 Mana Regen and 5 Magic.

Class upgrades

Picked at rank A and again at rank S. Drawn from the shared pool for the hero class, so two heroes of the same class compete for the same upgrades.

  • Stall Certainty

    Stall abilities trigger 6 seconds faster. Backup.

  • Rolling Conduit

    Mystics gain 1 Mana Regen for each reroll this game. Backup.

  • Shard Weaver

    Every other cast, gain 3 Shards.

  • Sideline Support

    Backup Only: At start of combat, gain 5 Shards and give Heroes 500 (+500 per Rank) Shields.

  • Stall Battery

    On Stall trigger, gain 1 Shard and give Heroes 3 Mana Regen. Backup.

  • Stall Enlightenment

    After Stall (30), permanently gain 4 Mana Regen.

  • Shield Magnification

    When this Hero applies Shields, apply 50% more Shields.

  • Empowered Magic

    On cast, give other Heroes 100% Mana Regen Attack and 100% Mana Regen Magic.

  • Shield Formation

    At start of combat, give this Hero and adjacent Heroes 400 (+250% Magic, +1000% Mana Regen) Shields.

  • Sideline Empowerment

    Backup Only: At start of combat, give Heroes 4 (+4 per Rank) Mana Regen, 50 (+25 per Rank) Attack, and 50 (+25 per Rank) Magic.

  • Protective Magic

    On cast, give the lowest percent health Hero 100 (+500% Mana Regen) Shields.

  • Arcane Growth

    On cast, permanently gain 2 Magic.

  • Debuff Amplification

    On cast, increase the amount of each Debuff on enemies in range by 50% Mana Regen.

  • Debuff Channeling

    On cast, gain 1 Mana Regen for each type of Debuff on all enemies.

  • Debuff Protection

    On cast, give the lowest percent health Hero 1 Shield per 2 Debuffs on all enemies.

Guildrun Heroes

Questions people ask

What class is Gustav in Guildrun?
Gustav is a Mystic hero with 700 health, 30 defence, 22 attack and 15 crit at rank C.
Which specializations can Gustav take?
Gustav has 3 paths: The Investor, The Glacier, The Avalanche. One is picked at rank B and stays locked for the rest of the run.
What does Gustav gain per rank?
Every stat rises at each rank, but Mana regen rises three to four times faster than the rest, because it is the primary stat of Gustav’s class. There are 3 upgrades between C and S.
What is Gustav’s starting ability?
Blizzard (Active). Create a Blizzard for 5 seconds. Each second, inflict 2 (+1 per 8 Mana Regen) Frost and deal 15 (+50% Magic) damage to enemies inside the Blizzard. Shield Heroes inside it for 10 (+75% Magic).
What does ranking a hero up actually do?
Rank B unlocks the specialization. Rank A adds a class upgrade. Rank S adds a second class upgrade and a fourth item slot. A hero below rank B cannot take a specialization at all.
Can a hero play outside its class?
Yes, and that is the point of the game. Specializations exist to pull a hero out of its class role. A Mage can end up as the damage carry, a Vanguard can end up generating shards.

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