
The Stoked
Mages gain 1 (+1 per rank) Magic whenever an enemy in their range takes Burn damage. Backup.
Funke gains 1 Mana whenever an enemy in his range takes Burn damage.
The Shackled
“Let me do things my way.”
A range-4 Mage whose Wildfire hits every enemy in range and applies Magic-scaling Burn. Stack Magic. The Stoked is a Backup that raises Mage Magic with every Burn tick, The Inferno gives +2 range and periodic Burn, and The Detonator detonates Burn damage 7 or more times. Other heroes that apply Burn, like Ming and Aria, fit well.

Blast a fireball at all enemies in Funke's range, dealing 175 (+200% Magic) damage and inflicting (+75% Magic) Burn.
At B rank you pick one of three. Tap the cards to compare.

Mages gain 1 (+1 per rank) Magic whenever an enemy in their range takes Burn damage. Backup.
Funke gains 1 Mana whenever an enemy in his range takes Burn damage.

Gain 2 Attack Range.
At start of combat and after Stall (15), inflict 25 (+1 per 3 Magic) Burn on all enemies in range.

On cast, all enemies in range take 7 (+7 per rank) ticks of Burn damage.
Specializations, upgrades and items players picked for Funke in shared builds. Each shows the pick rate (bold), the clear rate of builds with that pick, and the number of builds.
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Picked from the game data to match Funke's mechanics, class and the stats their abilities scale with. The tags before each item name say why.

+25 Starting Mana+25 Magic
On active ability kill, if held by a Mage this item gains 10 Magic.

+15 Crit+25 Magic
If this item is held by a Mage, double its stats.

+4 Mana Regen+25 Magic
If this item is held by a Mage, double its stats.

+75 Magic
The holder counts as a Mage during combat. If they were already a Mage, they gain +25% Magic.

+30 Attack Speed+40 Attack
On auto attack, deal bonus damage equal to the Burn on the target.

+200 Max HP+30 Defense+20 Attack Speed
On auto attack, inflict 4 Burn on the target.
When auto attacked, inflict 4 Burn on the attacker.
A and S rank upgrades are class upgrades: the options come from the hero's class, not the hero (game tutorial). In the current data the A and S rank options are the same list. S rank heroes also get one more item slot. Expand to see the options.

At start of combat, if this Hero is in the front row they gain (+100% Magic) Defense.

At start of combat, if this Hero is alone in the back 2 rows they gain +33% Magic and +50% Crit.

Stall abilities trigger 6 seconds faster. Backup.

On auto attack, deal (+100% Magic) bonus damage.

On cast, gain 100 Crit.

On cast, inflict (+50% Magic) Burn on enemies in range.

On cast, gain 1 Magic per 3 Burn on enemies in range.

After Stall (20), inflict (+100% Magic) Burn on all enemies.

At start of combat, Mages permanently gain 20 Magic. Backup.

On cast, inflict (+25% Magic) Frost on enemies in range.

On cast, gain 1 Magic per 5 Frost on enemies in range.

After Stall (20), inflict (+35% Magic) Frost on all enemies.

After Stall (25), permanently gain 40 Magic.

After Stall (15, 30, and 45), gain 100 Mana.

Gain 8 Mana Regen and 40 Starting Mana.
How to read the numbers: base value (+N% Stat) adds N% of that stat, (+A per B Stat) adds A for every B of that stat, and values split by slashes (/) are per rank.