Souls Bomb Rune
Type: Passive
Cost / Source: 1,000 Boss Coins (Greedy Shop)
Effect: Chance to summon 3 Soul Bombs on hit
Damage Output: 50% M1 damage per bomb
Best For: Budget starter rune
Runes Guide
Complete rune reference with effects, costs, and farming routes
This page covers all 6 known Broken Blade runes — their effects, Boss Coin prices, how to get them, and which ones are worth your farming time. Use it to decide your first rune purchase and plan your Boss Coin route.
Updated: June 10, 2026
Recommended Route
Runes are passive combat items in Broken Blade that trigger automatically during fights — no manual activation needed. There are 6 known runes total: 5 available from the Greedy Shop in Nidavellir for Boss Coins, and 1 (Crit Rune) exclusive to the Sky Spire Dungeon. This page tracks all rune effects, farming methods, and practical buy order so you know exactly which rune to chase at every stage of the game.
Quick Read
- Total Runes
- 6
- Best Overall
- Shadow Clone
- Cheapest Start
- 1,000 Coins
- Endgame Target
- Crit Rune
- Sells at
- Greedy Shop
- Last Checked
- June 2026
All Broken Blade Runes
All 6 known runes with effects, costs, sources, and damage values based on publicly documented data as of June 2026. Broken Blade receives live updates, so values may shift after patches.
Hell Fire Rune
Type: Passive
Cost / Source: 1,200 Boss Coins (Greedy Shop)
Effect: Chance to trigger a fiery AoE explosion on hit
Damage Output: 1.8x M1 damage (AoE)
Best For: Farming mobs and crowds
Thunder Rune
Type: Passive
Cost / Source: 1,400 Boss Coins (Greedy Shop)
Effect: Occasionally summons a lightning strike
Damage Output: 2x M1 damage
Best For: Balanced single-target damage
Blizzard Rune
Type: Passive
Cost / Source: 1,600 Boss Coins (Greedy Shop)
Effect: Creates an icy aura around enemies on hit
Damage Output: M1 damage per second for 5s
Best For: Sustained damage over time
Shadow Clone Rune
Type: Passive
Cost / Source: 1,800 Boss Coins (Greedy Shop)
Effect: Chance to summon 2 clones that fight alongside you
Damage Output: 3x M1 damage per clone
Best For: Best all-around boss DPS
Crit Rune
Type: Passive (Stat Boost)
Cost / Source: Sky Spire L80–90 boss drop (exclusive)
Effect: Permanent boost to Crit Chance and Crit Damage
Damage Output: No trigger. Multiplicative stat boost.
Best For: Endgame DPS min-maxing
How to Get Runes in Broken Blade
Greedy Shop — buy 5 runes with Boss Coins
The Greedy Shop is inside the Colosseum at Nidavellir Island. Teleport to Nidavellir, enter the Colosseum, and look for the shop NPC. All 5 shop runes cost Boss Coins, which you earn by defeating summoned bosses. Souls Bomb starts at 1,000 Coins, scaling up to Shadow Clone at 1,800 Coins. Shadow Clone is the only must-buy — the other four are functional but get outclassed.
View bosses guide for farm routesSky Spire Dungeon — exclusive Crit Rune drop
The Sky Spire Dungeon is located in Jotunheim. Bosses inside have a low chance to drop runes, but the Crit Rune drops exclusively from the boss on Layers 80 to 90. It cannot be bought from the Greedy Shop, traded, or obtained anywhere else. This is strictly an endgame farm — do not chase it until your build can reliably clear Layer 80.
Progression guide for unlocking Sky SpireFarming Boss Coins
Boss Coins come from summoned bosses. To summon a boss, you need Boss Keys, which drop from bosses across all islands. Use Boss Keys at the Demon Summoner NPC in Nidavellir, select a difficulty, and defeat the summoned boss for coins. Higher difficulties reward more coins but require stronger gear. A reliable boss loop is the fastest route to 1,800 coins for Shadow Clone.
Check active codes for Boss Key rewardsRune Farming Priority by Stage
Beginner (Level 1–500): Ignore runes
Runes cost Boss Coins and require a reliable boss route to farm efficiently. Before Level 500, focus on codes, leveling, your first weapon, and unlocking islands. Running rune routes with a weak build wastes time that is better spent on progression basics.
Midgame (Level 500–5,000): Farm for Shadow Clone
Once you have a stable boss route and can farm Nivaron or Gelaros consistently, start saving Boss Coins for Shadow Clone (1,800 Coins). This is the single biggest DPS jump from any rune. If you have leftover coins, Thunder (1,400 Coins) is a solid second pick for general content.
Endgame (Level 5,000+): Chase Crit Rune
Crit Rune is the endgame target. It requires Sky Spire Layer 80+ access and consistent clears. The drop rate is low, so treat it as a long-term goal. Continue farming shop runes while you work toward Sky Spire readiness — Shadow Clone alone is enough for most content.
Excalibur route: runes as support
If you are pursuing Excalibur, runes can help speed up boss clears and Sky Spire runs, but they do not replace Dragon Slayer prep, Soul Forge, Sky Keys, or Holy Grails. Use Shadow Clone to accelerate your boss loop, but do not delay your main Excalibur farm for a Crit Rune chase.
Weapons guide for Excalibur requirementsBest Rune Picks by Use Case
Not every rune fits every situation. Use these picks to match the right rune to your current content and playstyle.
Best for boss farming
You spend most of your time on summoned bosses and want a rune that accelerates your loot loop.
Best pick: Shadow Clone
Backup pick: Thunder
Shadow Clone's clones inherit your stats and scale into endgame. Thunder is a cheap backup that still outperforms Hell Fire on single targets.
Best for endgame DPS
You have a stable build and want to push maximum damage output for Sky Spire or Nightmare bosses.
Best pick: Crit Rune
Backup pick: Shadow Clone
Crit Rune multiplies your existing crit stats. It is the only rune that provides a permanent stat boost rather than a triggered effect.
Best budget starter
You just unlocked Nidavellir and have a limited Boss Coin supply. You need a functional rune without the grind.
Best pick: Souls Bomb
Backup pick: Hell Fire
Souls Bomb is the cheapest rune at 1,000 Coins. Hell Fire at 1,200 Coins offers better AoE value if you farm grouped mobs.
Best for AoE farming
You farm large packs of enemies on islands and want a rune that clears crowds faster.
Best pick: Hell Fire
Backup pick: Blizzard
Hell Fire hits multiple enemies with its AoE explosion. Blizzard provides sustained damage over time for drawn-out fights.
FAQ
What is the best rune in Broken Blade?
Shadow Clone Rune (1,800 Boss Coins) is the best rune for most players. It summons 2 clones that each deal 3x your M1 damage, making it the highest DPS rune in the shop. For endgame players, the Crit Rune provides a multiplicative stat boost that can outscale Shadow Clone in long fights.
Compare with the tier listHow do I get runes in Broken Blade?
There are two ways. The Greedy Shop in Nidavellir sells 5 runes for Boss Coins (1,000–1,800 each). The Crit Rune drops exclusively from the Sky Spire boss on Layers 80–90. You need Boss Keys to summon bosses for coins. Read the How to Get Runes section above for full farming routes.
How much do runes cost in the Greedy Shop?
Souls Bomb costs 1,000 Boss Coins, Hell Fire costs 1,200, Thunder costs 1,400, Blizzard costs 1,600, and Shadow Clone costs 1,800. All are purchased with Boss Coins earned from summoned bosses at the Demon Summoner NPC.
Is the Crit Rune better than Shadow Clone?
Crit Rune provides a permanent stat boost to Crit Chance and Crit Damage, which scales multiplicatively with your gear. For general boss farming, Shadow Clone is better because its clones deal 3x M1 damage each. For endgame DPS min-maxing, Crit Rune can pull ahead. Most players should buy Shadow Clone first and chase Crit Rune later.
Should beginners farm runes?
No. Beginners should focus on codes, leveling, weapons, and unlocking islands. Rune farming requires a reliable boss route and at least 1,000 Boss Coins. Start thinking about runes once you have a stable Nivaron or Gelaros farm running.
Can I get runes from trading?
The Crit Rune cannot be traded or bought from other players — it is bound to your account. Shop runes are not tradeable either because they are consumed on purchase. You must farm Boss Coins or Sky Spire yourself.
How do I farm Boss Coins fast?
Farm bosses for Boss Keys, then use the keys at the Demon Summoner in Nidavellir to summon harder bosses that drop more coins. A fast boss loop with a stable build is the most efficient route. Joining a group reduces clear time per run.
View full bosses guideNext Steps