10 Best Source Skills in Divinity Original Sin 2 for 2026

Any seasoned player of Divinity: Original Sin 2 knows that being a Sourcerer is less about wielding magic and more about holding a handful of liquid thunder in a thimble. Source Points are scarce, and wasting them on weak Source abilities is like leaving a dragon’s hoard in a leaky pouch. The following list ranks the ten best Source skills as of 2026, based on how dramatically they can tilt combat in a party's favor.

The Ranking at a Glance

Rank	Skill	Main Use
10	Thick of the Fight	Massive melee damage buff
9	Dust Blast	Earth damage and blinding
8	Vacuum Aura	Air damage, silence, suffocation
7	Chain Lightning	Heavy multi-target Air damage
6	Dome of Protection	Armor healing and resistances
5	Pyroclastic Eruption	Area denial and Earth damage
4	Grasp of the Starved	Physical damage and Crippled
3	Summon Inner Demon	Extra attacks and fear
2	Skin Graft	Cooldown reset and status cleanse
1	Apotheosis	Makes other Source skills cheap

10. Thick of the Fight

• Action Point cost: 2

• Source Point cost: 1

• Cooldown: 4

• Best for: Buffing a melee damage dealer

The melee warrior playstyle has always been a popular one in Divinity: Original Sin 2, and Thick of the Fight makes that choice even more rewarding. This skill grants the caster a substantial attack boost for every nearby character, regardless of whether that character is a friend or a foe. It works on any build, but players get the most value by placing it on a frontliner with high physical armor. The effect can turn a losing scrape into a close victory, almost like adding gunpowder to a blacksmith’s hammer.

9. Dust Blast

• Action Point cost: 3

• Source Point cost: 1

• Cooldown: 3

• Best for: Wide Earth damage and blinding multiple enemies

Dust Blast does not sound intimidating, but that is part of its charm. The caster essentially throws a magical pocket sand at a group of enemies, except the sand might as well be diamond dust. It deals serious Earth damage and applies a Blinding status, which can neutralize enemy attackers for a turn or two. Because the radius is generous and the range is long, Dust Blast works beautifully against clustered enemies. It is a playful-looking spell with the tactical value of a hidden blade.

8. Vacuum Aura

• Action Point cost: 2

• Source Point cost: 1

• Cooldown: 5

• Best for: Disabling enemy spellcasters

Few things are more nerve-wracking in Divinity: Original Sin 2 than watching an enemy caster line up a perfect skill. Vacuum Aura removes that worry. It deals Air damage, suffocates enemies to chip away at their magic armor, and silences them. Against mages carrying staves or wands, this ability cuts through the backline like a zephyr with scissors. It is especially useful in fights where the opposing team leans heavily on magical offense.

7. Chain Lightning

• Action Point cost: 3

• Source Point cost: 1

• Cooldown: 5

• Best for: Direct Air damage against multiple targets

Most fantasy games treat Chain Lightning as a spell that weakens with each jump. Divinity: Original Sin 2 ignores that rule. This version deals roughly 150 percent Air damage to every target within an eight-meter radius, with no damage falloff. That makes it a rare spell that grows louder with every retelling, or in this case, with every bounce. If enemies are standing in water or have been drenched by Hydrosophist spells, Chain Lightning can delete a battered enemy team in one cast.

6. Dome of Protection

• Action Point cost: 1

• Source Point cost: 1

• Cooldown: 6

• Best for: Defensive buffing and armor restoration

Dome of Protection is a portable stone skin wrapped in bubble wrap. It restores both physical and magic armor to all nearby allies, and it also increases their resistances. In a game where armor is often more valuable than raw health, this cheap Source skill can prevent a full party wipe. It is so reliable that custom characters receive it automatically, which should tell players how much the developers trusted this defensive tool to keep teams alive.

5. Pyroclastic Eruption

• Action Point cost: 3

• Source Point cost: 3

• Cooldown: 5

• Best for: Area denial and setting the battlefield on fire

If a player wants to make combat miserable for everyone, mostly the enemies, Pyroclastic Eruption is the right tool. It covers a large section of the battlefield with oil, slowing anyone who walks through it and setting up devastating fire damage. The initial Earth damage is already high, but the lingering oil turns the entire combat zone into a tar pit with a short fuse. It is a heavy Source investment, but against clustered opponents it can decide the fight before the enemy gets a turn.

4. Grasp of the Starved

• Action Point cost: 2

• Source Point cost: 2

• Cooldown: 5

• Best for: Mass physical damage and Crippled status

Grasp of the Starved is a bear trap made of everyone’s spilled HP. It deals heavy physical damage to any enemy standing on a blood surface and applies Crippled, preventing movement for a couple of turns. In longer battles where the ground has become a red mess, this skill becomes a brutal follow-up option. Crippled enemies cannot reposition, making them easy targets for cluster damage, area spells, or a final cleanup from a melee companion.

3. Summon Inner Demon

• Action Point cost: 1

• Source Point cost: 1

• Cooldown: 6

• Best for: Extra attacks and crowd control

Summon Inner Demon places a spectral bouncer over the caster’s shoulder, ready to punish anything that gets too close. It grants free attacks, which is always valuable in a turn-based game, and it strips magic armor from nearby enemies. Those without magic armor are frightened and forced to run away. Placing this skill on a melee character or battlemage creates a nasty frontliner who controls space simply by existing.

2. Skin Graft

• Action Point cost: 1

• Source Point cost: 1

• Cooldown: N/A

• Best for: Resetting cooldowns and removing negative statuses

Skin Graft is a support ability that enables many broken tactics. It removes Burning, Necrofire, Poisoned, and Bleeding, but the main draw is that it resets all of the caster’s cooldowns. This turns the skill into a timepiece that rewinds only the caster’s mistakes. Combined with other abilities, Skin Graft allows players to repeat powerful combos in a way that would otherwise be impossible. For only one Source Point, it is one of the most efficient skills in the entire Polymorph school.

1. Apotheosis

• Action Point cost: 2

• Source Point cost: 3

• Cooldown: N/A

• Best for: Making Source skills much cheaper to cast

Apotheosis sits at the top because it is a skeleton key that turns Source abilities into an all-you-can-cast buffet. Once active, it makes Source skills that cost three Source Points or less practically free. Since most of the best Source abilities fall in that range, Apotheosis opens the door to long chains of devastating spells. The usual setup pairs it with Haste and Skin Graft, allowing players to cast high-impact Source skills repeatedly without running dry. In 2026, Apotheosis remains the strongest piece in the Source skill puzzle, especially for players who enjoy turning a difficult encounter into a fireworks display.