Blue Tool vs Yellow Tool in Silksong — When to Use Each Slot
What the Tool slot colors mean in Silksong
Silksong has three Tool slot colors: red, blue, and yellow. Each color groups Tools by function. Red Tools are melee combat Tools (Threaded Sword silk-dash, Curveclaw AoE, Mossberry Salve healing). Blue Tools are ranged or status-based Tools (Pebble Drop projectile, Volt Filament electric, Silkshot caster, Witherspit poison). Yellow Tools are utility (Drifter's Cloak iframes, Magnetite Crystal pickup, Sticky Boots traction, Plasmium Phial jump bonus, Lumafly Lantern light).
The color system replaces Hollow Knight 1's notch budget — instead of paying notches per charm, you pick which slots are available per Crest. Hunter and Reaper have a balanced 2/2/2 split (2 red, 2 blue, 2 yellow). Witch trades a red slot for a third blue slot (1/3/2 layout). Wanderer trades a red slot for a third yellow slot (1/2/3 layout). Shaman is unique: 2/2/2 but with poison passive that boosts blue Tools.
Confusion among returning Hollow Knight 1 fans comes from expecting 'mix and match' freedom. Silksong's slot system is more rigid — you can't put a blue Tool in a red slot. The Crest defines the color layout; switching builds means switching Crest first.
Blue vs Yellow Tool roles
| Slot color | Primary role | Silk cost range | Cooldown range | |
|---|---|---|---|---|
| Blue (damage / status) | Blue (damage / status) | Ranged DPS, projectiles, status effects | 1-4 silk per cast | 0.3-1.5s cooldowns |
| Yellow (utility / movement) | Yellow (utility / movement) | Iframes, pickup, jump, exploration | 0-1 silk per cast | 1.2-3.0s cooldowns or passive |
Blue Tool deep-dive — what they do and when to equip
Blue Tools are Silksong's spell equivalents. Each one converts silk into either direct damage, projectile DPS, or status effect. They're the cornerstone of any ranged build and the highest-DPS-per-silk casts in the game. Mk II Pebble Drop sits at 24 damage per 1 silk — that's the best DPS efficiency of any Tool in Silksong.
Best blue Tools by use case: Pebble Drop for universal cheap chip (1 silk, 12 damage Mk I / 24 damage Mk II); Volt Filament for Deep Docks cinderbug farming (3 silk, 35 damage + 50% electric bonus); Silkshot for ranged caster builds with Witch Crest (3 silk, 28 damage, 4-unit ranged projectile); Witherspit Tool for Shaman Crest poison loops (2 silk, 8 damage instant + 4-tick poison DoT).
Equipping multiple blue Tools requires Witch Crest's 3-blue-slot layout. Hunter and Reaper Crests only get 2 blue slots, so Pebble Drop + Volt Filament fills both. Wanderer gets only 1 blue slot — typically Pebble Drop for emergency chip damage during exploration.
Top blue Tools ranked
- Pebble Drop — 1 silk, 12 damage (Mk I) / 24 damage (Mk II). Best DPS-per-silk in the game. Equip on every Crest.
- Volt Filament — 3 silk, 35 damage + 50% electric bonus. S-tier in Deep Docks; A-tier elsewhere.
- Silkshot — 3 silk, 28 damage, 4-unit projectile. Witch Crest cornerstone for ranged builds.
- Witherspit Tool — 2 silk, 8 instant + 4-tick poison DoT. Shaman Crest required for full value.
- Curveclaw — 2 silk, 18 damage AoE arc. B-tier — Reaper Crest does AoE better via standard sweep.
Yellow Tool deep-dive — what they do and when to equip
Yellow Tools are utility — they don't deal damage. Their value is in survivability (iframes), exploration (pickup, traversal), and quality-of-life (auto-pull, light). Silk costs are lower than blue Tools (0-1 silk) and several yellow Tools are passive (no silk cost at all). Yellow Tools are what separates a 'just survives' build from a 'comfortably explores Pharloom' build.
Best yellow Tools by use case: Drifter's Cloak for boss survivability (1 silk, 0.6s/0.9s iframes); Magnetite Crystal for rosary auto-pull (passive, 4-unit/8-unit radius); Sticky Boots for traversal (passive, 30%/60% slide reduction); Plasmium Phial for pogo chain assistance (passive, +10%/18% jump height); Lumafly Lantern for dim areas (1 silk, 8-unit light radius).
Wanderer Crest's 3-yellow-slot layout maximizes utility — typically Drifter's Cloak + Magnetite Crystal + Sticky Boots for a full exploration kit. Hunter and Reaper get 2 yellow slots (Drifter's + Magnetite is the universal pick). Witch Crest gets 2 yellow slots but rarely uses both since blue Tools dominate the build.
Top yellow Tools ranked
- Drifter's Cloak — 1 silk, 0.6s iframes (Mk I) / 0.9s iframes (Mk II) + 3-unit dash. Equip on every Crest.
- Magnetite Crystal — passive, 4u (Mk I) / 8u (Mk II) auto-pull radius. QoL essential.
- Sticky Boots — passive, 30% (Mk I) / 60% (Mk II) slide reduction. Wanderer Crest essential.
- Plasmium Phial — passive, +10% (Mk I) / +18% (Mk II) jump height. Pogo chain assistance.
- Lumafly Lantern — 1 silk, 4u (Mk I) / 8u (Mk II) light radius. Cogwork Core specific.
Slot allocation per Crest — the key decision
Crest choice defines slot allocation: Hunter and Reaper get 2/2/2 (balanced); Witch gets 1/3/2 (blue-heavy); Wanderer gets 1/2/3 (yellow-heavy); Shaman gets 2/2/2 with poison passive. The slot layout makes some builds non-viable on certain Crests — Witch can't run a balanced combat-and-utility loadout, and Wanderer can't stack blue Tools for caster builds.
Practical splits by Crest: Hunter — Threaded Sword + Mossberry Salve (red), Pebble Drop + Volt Filament (blue), Drifter's Cloak + Magnetite Crystal (yellow). Wanderer — Threaded Sword (red), Pebble Drop (blue), Drifter's Cloak + Magnetite Crystal + Sticky Boots (yellow). Witch — Threaded Sword (red, emergency), Pebble Drop + Silkshot + Volt Filament (blue), Drifter's Cloak + Magnetite Crystal (yellow). Shaman — Threaded Sword + Mossberry Salve (red), Pebble Drop + Witherspit Tool (blue), Drifter's Cloak + Magnetite Crystal (yellow).
The choice between Witch (blue-heavy) and Wanderer (yellow-heavy) often comes down to playstyle. Caster players favor Witch for triple-blue setups; explorers and pogo-chain enthusiasts favor Wanderer for triple-yellow. Both are valid endgame Crests; switch between them at benches based on what you're doing in the next 30 minutes.
Crest slot allocations side-by-side
| Crest | Red slots | Blue slots | Yellow slots | Best for | |
|---|---|---|---|---|---|
| Hunter | Hunter | 2 | 2 | 2 | Balanced boss-killer |
| Reaper | Reaper | 2 | 2 | 2 | AoE / crowd clear |
| Witch | Witch | 1 | 3 | 2 | Ranged caster builds |
| Wanderer | Wanderer | 1 | 2 | 3 | Exploration + pogo chains |
| Shaman | Shaman | 2 | 2 | 2 | Status / poison DoT |
Verdict: Hunter and Reaper are the default balanced picks. Witch trades a red slot for a third blue — caster fantasy. Wanderer trades a red slot for a third yellow — exploration fantasy. Switch Crests at benches based on what you're doing in the next 30 minutes; the slot bonus is the entire reason to choose Witch or Wanderer over Hunter.
Recommended Witch Crest blue-heavy loadout
| Slot | Recommended pick | Why / notes |
|---|---|---|
| Crest | Witch Crest | 1 red, 3 blue, 2 yellow — caster slot configuration |
| Red Tool | Threaded Sword Mk II | Emergency mobility only — most damage comes from blue Tools |
| Blue Tool 1 | Pebble Drop Mk II | Universal cheap chip — 24 damage per 1 silk |
| Blue Tool 2 | Silkshot Mk II | Ranged 28-damage projectile — 6-unit range with Mk II |
| Blue Tool 3 | Volt Filament | 35 damage + 50% electric bonus on weak enemies |
| Yellow Tool 1 | Drifter's Cloak Mk II | 0.9s iframes — boss survival |
| Yellow Tool 2 | Magnetite Crystal Mk II | 8-unit auto-pull radius |
Common Tool slot mistakes
- Running Witch Crest without Silkshot. Silkshot is the cornerstone of Witch builds — without it, the third blue slot has no proper caster Tool.
- Running Wanderer Crest with combat-only yellow Tools. Wanderer's 3-yellow slot bonus is meant for exploration; combat-only loadouts waste the bonus.
- Filling red slots on Witch with Threaded Sword + Mossberry Salve. Witch only has 1 red slot — pick Threaded Sword for emergency mobility, skip the salve.
- Skipping Drifter's Cloak on any Crest. The 0.9s iframes cover every boss punish window; no Crest can ignore it.
- Equipping Lumafly Lantern outside Cogwork Core. Wanderer's Hunter's Eye passive does the same job for free in most areas.
- Trying to put a blue Tool in a red slot. Slot colors are locked — you can't mix Tool types per slot.
Frequently asked questions
What's the difference between blue and yellow Tools in Silksong?
Blue Tools are damage-and-status focused (Pebble Drop, Volt Filament, Silkshot, Witherspit) — they replace spells from Hollow Knight 1. Yellow Tools are utility-focused (Drifter's Cloak iframes, Magnetite Crystal auto-pull, Sticky Boots traction, Plasmium Phial jump bonus). Blue Tools cost 1-4 silk per cast; yellow Tools cost 0-1 silk or are passive.
Which Crest has the most blue slots?
Witch Crest — 1 red, 3 blue, 2 yellow. Witch trades a red slot for a third blue slot, making it the caster-build Crest. Hunter, Reaper, and Shaman are balanced 2/2/2. Wanderer trades a red for a third yellow.
Which Crest has the most yellow slots?
Wanderer Crest — 1 red, 2 blue, 3 yellow. Wanderer trades a red slot for a third yellow slot, making it the exploration-build Crest. Combined with Sticky Boots + Plasmium Phial + Drifter's Cloak, it's the most-mobility loadout in the game.
Is Pebble Drop the best blue Tool?
Yes by silk efficiency — at 24 damage per 1 silk (Mk II), it's the highest DPS-per-silk in Silksong. Equip on every Crest. Volt Filament beats it inside Deep Docks (electric bonus), but Pebble Drop wins everywhere else.
Can I put a blue Tool in a yellow slot?
No — slot colors are locked. Each Tool has a fixed color that matches one slot type. The Crest determines how many slots of each color you have available. Switching color requirements means switching Crest at a bench.
How do I decide between Witch and Wanderer?
Caster fantasy (3 blue slots for ranged DPS): Witch. Exploration fantasy (3 yellow slots for movement and survival): Wanderer. Most players run Hunter as the default and switch to Witch/Wanderer at benches for specific content (caster builds for Widow / Cogwork Dancers; exploration for unmapped regions).
What's the best universal yellow Tool?
Drifter's Cloak Mk II — 0.9s iframes covers every boss punish window in Silksong. 1 silk per cast, 1.2s cooldown, 3-unit dash component. Equip on every Crest. The 300-rosary Mk II upgrade pays back within 3 boss fights of avoided deaths.
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Continue this guide path
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