Popping Black King Bar feels like hitting the invincibility button, but any veteran will tell you it is not a magic bubble. There is a long list of Dota 2 spells that go through BKB, and getting caught by one at the wrong moment can end a fight before your immunity even matters. We built this guide to give you a clean, up-to-date reference for which abilities pierce spell immunity, which ones do not, and how to draft or itemize around them.
How BKB Actually Works
Black King Bar grants spell immunity (also called magic immunity), plus 60% magic resistance and immunity to pure damage from most sources. The duration starts high on first cast and drops with each use down to a minimum, which is why timing matters more than clicking early.
Spell immunity blocks the vast majority of enemy abilities. But Valve has flagged specific spells and specific components of spells as “pierces spell immunity” in the tooltip. Those are the ones you need to memorize.
A few quick rules to keep in mind:
- BKB does not block physical damage. Right-clicks, cleave, and most attack modifiers still hit you.
- BKB does not stop pure damage from sources tagged as piercing spell immunity.
- Some spells apply the debuff before you activate BKB, and the debuff continues ticking through immunity.
- Ultimates from Aghanim’s Scepter or Shard upgrades sometimes gain piercing that the base spell does not have.
If you want a broader item primer, our dota 2 item guide covers where BKB fits in a standard build path.
Full Hero Ability List: Spells That Pierce BKB
Below is the master list, grouped by what the spell does to you. These are the ones that will still ruin your day even with immunity active.
Hard Disables That Pierce BKB
These are the scariest, because they lock you down completely.
| Hero | Ability | Effect |
|---|---|---|
| Bane | Fiend’s Grip | Channeled disable and mana drain |
| Beastmaster | Primal Roar | Stun and slow around the target |
| Doom | Doom | Silences, disarms, and damages over 12+ seconds |
| Faceless Void | Chronosphere | Freezes everyone inside, including allies |
| Legion Commander | Duel | Forces a right-click duel, disarms both heroes |
| Enigma | Black Hole | Pulls and stuns all enemies in the area |
| Batrider | Flaming Lasso | Drags the target with Batrider |
| Naga Siren | Song of the Siren | Puts all enemies to sleep |
Damage and DoTs That Pierce BKB
These will keep chunking your HP even during immunity.
- Axe, Culling Blade: Executes below the HP threshold regardless of BKB.
- Ancient Apparition, Ice Blast: The shatter effect and healing prevention pierce.
- Pudge, Dismember: Damage and disable both go through.
- Winter Wyvern, Winter’s Curse: Turns your allies against you through BKB.
- Death Prophet, Exorcism: The spirits deal physical damage that ignores immunity.
- Huskar, Life Break: The initial damage and slow pierce.
Slows, Silences and Debuffs That Pierce BKB
- Silencer, Global Silence: One of the most famous piercing ultimates in the game.
- Bloodseeker, Rupture: Movement damage keeps ticking through BKB.
- Invoker, Deafening Blast (with Aghanim’s Shard on some patches): Check tooltip in your current client.
- Lion, Finger of Death: Pure damage nuke that pierces.
- Lina, Laguna Blade (with Aghanim’s Scepter): Base version is blocked; the Scepter upgrade pierces and deals pure damage.
Key takeaway: Aghanim’s upgrades change piercing status for several heroes. Always hover the tooltip in the current patch to confirm before you commit to a BKB timing.
Movement and Positioning Spells That Pierce BKB
- Tiny, Toss: Still throws you across the map.
- Pudge, Meat Hook: The initial hit does not pierce, but Pudge can still grab you if you were hooked before activation.
- Underlord, Fiend’s Gate: Portal effect works regardless.
- Kunkka, X Marks the Spot returns you to the mark even through BKB.
Bashes and Attack Modifiers vs BKB
This is where players get confused. Bashes are physical, so most of them do not need to “pierce” spell immunity in the traditional sense. They keep working because BKB was never designed to stop physical procs.
- Faceless Void, Time Lock: Stuns through BKB (attack modifier, physical).
- Troll Warlord, Fervor bashes from Aghanim’s Scepter: Physical, works through immunity.
- Slardar, Bash of the Deep: Physical stun, still lands.
- Spirit Breaker, Greater Bash: Physical knockback that works through BKB.
Bottom line on bashes: if a stun comes from an attack rather than a targeted spell, assume BKB will not save you.
Auras, Passives and Environmental Effects
Auras generally do not care about your BKB status. That includes:
- Vladmir’s Offering and other aura items applied to enemies.
- Radiance burn damage from an enemy carrier.
- Bloodstone and similar passive effects.
- Terrain effects like Ice Shards or Fissure blocking your path.
You can be BKB’d and still get walled off, chipped down by Radiance, or slowed by an aura in the area.
Which Popular Spells DO Get Blocked
Just as important as knowing what pierces is knowing what BKB actually saves you from. These get shut down cleanly:
- Zeus’s Lightning Bolt and Thundergod’s Wrath.
- Lion’s Earth Spike and base Finger of Death targeting rules aside, most base nukes.
- Crystal Maiden’s Frostbite and Freezing Field.
- Sven’s Storm Hammer.
- Lina’s base Laguna Blade (without Scepter upgrade).
- Most single-target magic nukes across the roster.
If your team’s threat is a Zeus or a Skywrath Mage, your BKB timing window is huge. If it is a Bane, Doom, or Silencer, you need a completely different plan.
How to Play Around Piercing Spells
Knowing the list is half the battle. Here is how we adjust once we see these heroes in the draft.
1. Buy Different Items
BKB is not your only tool. When the enemy stacks piercing disables, consider:
- Linken’s Sphere to block single-target spells like Doom or Fiend’s Grip.
- Lotus Orb to reflect targeted debuffs.
- Manta Style to dispel debuffs like Rupture or Ice Blast’s slow component.
- Eul’s Scepter of Divinity for self-cyclone dispels.
- Aeon Disk to survive burst combos that would kill you during a disable.
Our dota 2 neutral items guide also lists neutral drops that provide status resistance and dispels, which stack nicely with BKB.
2. Draft Answers
If you are running a hard carry into a Bane, Doom, or Legion Commander lineup, a support with Lotus Orb or Glimmer Cape becomes non-negotiable. For draft ideas that survive these matchups, we cover the current standouts in our dota 2 best carry heroes roundup.
3. Positioning First
No item beats not being the target. Stay behind your frontline, use fog and vision to your advantage, and force the piercing ultimate onto a throwaway target. If you play position 4 or 5, our dota 2 support guide has more on how to bait these cooldowns before your carry commits.
4. Time Your BKB Late, Not Early
The most common mistake we see in ranked is popping BKB the instant a fight starts. If the enemy team’s only piercing threat is a Silencer ultimate, you want to eat that first, then activate. Sprint your BKB to answer the follow-up, not the opener.
Quick Reference Table: BKB Interaction Cheat Sheet
| Category | Blocked by BKB? |
|---|---|
| Standard magic nukes (Lightning Bolt, Earth Spike) | Yes |
| Physical attack damage | No |
| Bashes from attack modifiers | No |
| Piercing ultimates (Doom, Duel, Fiend’s Grip) | No |
| Radiance / Vladmir aura damage | No |
| Aghanim’s-upgraded spells (varies) | Check tooltip |
| Pure damage tagged as piercing | No |
| Movement effects already applied before activation | No |
Rule of thumb: if the tooltip says “pierces spell immunity,” it goes through. If it does not, BKB blocks it.
The Bottom Line
BKB is the most important defensive item in Dota 2, but it is not a get-out-of-jail-free card. The list of Dota 2 spells that go through BKB is long enough that every core player needs to know the top offenders by heart, especially the hard disables from Bane, Doom, Beastmaster, and Faceless Void. Piercing status can also shift with Aghanim’s upgrades between patches, so always confirm in your current client before betting a fight on immunity.
Want to keep leveling up your game sense? Check out our dota 2 hero tier list to see which piercing threats are most popular in the current meta, and our dota 2 mmr guide if you are trying to climb ranked without throwing to the same Doom pick twice a week.