The weapon tier list for Be The Final Boss ranks every direct-damage weapon the BOSS can equip — from the starter weapon through the UPD2 additions Stormcaller and Soul Cleaver — based on damage-per-coin efficiency, wave-clear window versatility, and synergy with the live meta minion composition under the UPD2 patch. Each entry below covers the weapon's upgrade cost from tier 1 to tier 4, the optimal wave window where the weapon peaks, the skill tree prerequisites that gate the weapon's full potential, and the specific build contexts where the weapon becomes mandatory. Weapon choice is the second most impactful progression lever after Population, because a BOSS with a top-tier weapon can clear wave clusters that would otherwise require two additional minion slots. If you are still planning your progression, the Overall Tier List covers the system-level rankings and the Best Boss Weapons article covers the upgrade priority path.
S Tier Weapons
S-tier weapons are weapons that should be equipped as soon as they unlock, regardless of your army composition or skill tree build. Each S-tier weapon has a damage profile that no other weapon matches in its optimal window.
| Weapon | Unlock | Best Window | Upgrade Cost (T1→T4) |
|---|---|---|---|
| Stormcaller | Wave 30 | Wave 30-50+ | 1,800 coins |
| Soul Cleaver | Wave 20 | Wave 20-35 | 1,200 coins |
| UPD1 Siege Hammer | Wave 25 | Wave 25-40 | 1,500 coins |
Stormcaller — S Tier
Stormcaller is the highest single-target AOE weapon in the live meta, firing a 3-tile line of lightning every 8 seconds for 120 damage per target hit. The lightning pierces through hero clusters and ignores armor modifiers, which makes Stormcaller the only weapon that can reliably clear the Wave 50 second-checkpoint boss spawns. Stormcaller unlocks at Wave 30 and costs 450 coins to upgrade from tier 1 to tier 2.
The full upgrade path from tier 1 to tier 4 costs 1,800 coins, with each tier roughly doubling the per-hit damage and reducing the cooldown by roughly 1 second. A max-tier Stormcaller clears a 6-hero cluster in a single cast, which is roughly 4x more efficient than the starter weapon at the same task.
Stormcaller Tier Damage Versus Cooldown
The Stormcaller's per-tier scaling is not linear, and each tier shifts the optimal use case slightly. The table below captures the per-tier damage, cooldown, and effective damage-per-second (DPS) for a single target hit, which is the most useful metric for comparing Stormcaller against the Soul Cleaver in the Wave 30-50 window.
| Tier | Per-Hit Damage | Cooldown | Single-Target DPS | Cluster DPS (6 Heroes) |
|---|---|---|---|---|
| 1 | 120 | 8.0s | 15.0 | 90 |
| 2 | 230 | 7.0s | 32.9 | 197 |
| 3 | 410 | 6.0s | 68.3 | 410 |
| 4 | 720 | 5.0s | 144.0 | 864 |
The DPS jumps from tier 3 to tier 4 are roughly 2x, which is why most veteran BOSSes bank coins specifically for the tier 4 push rather than spreading spend across all tiers. The cluster DPS column is why Stormcaller becomes mandatory at Wave 50 — no other weapon in the live meta can output 864 cluster DPS on a 5-second cooldown.
Soul Cleaver — S Tier
Soul Cleaver is the highest sustained damage weapon for solo BOSSes who do not have access to Stormcaller yet, dealing +30% damage against slowed targets with a 1-second slow proc on every third hit. The slow effect synergizes with Doomfist's AOE pulse for a combined ~2x damage amplification against slowed-and-clustered heroes. Soul Cleaver unlocks at Wave 20 and costs 250 coins to upgrade from tier 1 to tier 2.
The full upgrade path from tier 1 to tier 4 costs 1,200 coins, which makes Soul Cleaver the most cost-efficient S-tier weapon in the game. A BOSS who claims the Soul Cleaver immediately at Wave 20 and prioritizes the upgrade path will reach tier 4 by approximately Wave 28, just in time for the Wave 25 Boss encounter.
UPD1 Siege Hammer — S Tier
The UPD1 Siege Hammer is the slow-but-heavy single-target weapon that deals 340 damage per hit with a 12-second cooldown. The Siege Hammer is the highest single-target damage weapon in the live meta but is limited by the slow cooldown and the lack of AOE coverage. The weapon unlocks at Wave 25 through the UPD1 demon mutation chain and costs 1,500 coins to upgrade from tier 1 to tier 4.
The Siege Hammer is the recommended counter for Wave 25 Boss Phase 2, where the boss gains a damage reflection aura that punishes rapid-fire weapons. The Siege Hammer's slow cooldown keeps the BOSS out of the reflection window for longer, which is the only viable counter to the Phase 2 enrage.
A Tier Weapons
A-tier weapons are strong default choices that perform reliably across most wave windows but lack the peak damage or wave-clear versatility of S-tier alternatives. A-tier weapons are the recommended second picks for any BOSS build and are the workhorses that keep the BOSS combat-effective between S-tier weapon unlocks.
| Weapon | Unlock | Best Window | Upgrade Cost (T1→T4) |
|---|---|---|---|
| Soul Reaver | Wave 15 | Wave 15-30 | 900 coins |
| Demonic Blade | Wave 22 | Wave 22-38 | 1,000 coins |
| Stormcaller Apprentice | Wave 18 | Wave 18-28 | 700 coins |
Soul Reaver — A Tier
Soul Reaver is the mid-game AOE weapon that fills the gap between the starter weapon and Soul Cleaver, dealing 80 damage in a 2-tile radius every 5 seconds. The weapon is a strict upgrade over the starter weapon for any BOSS who has reached Wave 15 and has not yet unlocked Soul Cleaver. The full upgrade path costs 900 coins, which is the most affordable A-tier option.
Demonic Blade — A Tier
Demonic Blade is the demon-themed weapon that grants +15% demon minion damage as a passive aura, making it the optimal pairing for any BOSS running a Demon Flanker or Demon Bruiser heavy composition. The weapon itself deals 95 damage per swing with a 3-second cooldown, but the demon damage aura is the real value driver. The Demonic Blade unlocks at Wave 22 and costs 1,000 coins to fully upgrade.
B Tier Weapons
B-tier weapons are situational workhorses that perform well in specific wave windows but are outclassed by S-tier and A-tier alternatives in the long run. B-tier weapons are common in early-game builds but should be replaced as soon as the A-tier upgrades become affordable.
| Weapon | Unlock | Best Window | Replace At |
|---|---|---|---|
| Starter Weapon | Wave 1 | Wave 1-19 | Soul Reaver unlock |
| Fusion Bow | Wave 12 | Wave 12-22 | Soul Cleaver unlock |
| Crystal Scepter | Wave 8 | Wave 8-18 | Soul Reaver unlock |
The starter weapon is B-tier only because of its wave window, not because it is weak in absolute terms. The starter is mathematically the best choice for Wave 1-19 because it is free and has no opportunity cost. Once Soul Reaver unlocks at Wave 15, transition out of the starter as soon as you have the soul and coin reserves.
C and D Tier Weapons
C-tier weapons are niche picks that serve a very specific build function but are not recommended for general use. The Cursed Wand is a C-tier weapon that grants +10% soul generation as a passive aura, which is useful for soul-starved BOSSes but does not contribute to wave-clear performance.
D-tier weapons should be skipped entirely in veteran builds. The current D-tier entry is the Basic Wand (a pre-Wave 5 filler weapon) which is strictly outclassed by the starter weapon in every metric.
Weapon Upgrade Priority Path
The optimal upgrade priority depends on your current wave window and your army composition. Three priority paths cover roughly 90% of veteran BOSS builds:
Wave 1-19 Priority (Beginner)
-
Upgrade 1 — Starter weapon to tier 2 (free, available immediately)
-
Upgrade 2 — Starter weapon to tier 3 (200 coins)
-
Upgrade 3 — Starter weapon to tier 4 (400 coins)
Wave 20-29 Priority (Mid-Game)
-
Upgrade 1 — Soul Cleaver to tier 2 (250 coins)
-
Upgrade 2 — Soul Cleaver to tier 3 (450 coins)
-
Upgrade 3 — Soul Cleaver to tier 4 (500 coins, total 1,200)
Wave 30-50+ Priority (Late-Game)
-
Upgrade 1 — Stormcaller to tier 2 (450 coins)
-
Upgrade 2 — Stormcaller to tier 3 (600 coins)
-
Upgrade 3 — Stormcaller to tier 4 (750 coins, total 1,800)
Priority by Wave Window
| Wave | Primary Weapon | Secondary | Total Coin Cost |
|---|---|---|---|
| 1-19 | Starter | None | 600 |
| 20-29 | Soul Cleaver | Demonic Blade | 2,200 |
| 30-50+ | Stormcaller | Siege Hammer | 3,300 |
Weapon and Skill Tree Synergies
The weapon rankings above assume baseline skill tree investment, but specific weapon-tree synergies can move a weapon up or down one tier. The highest-impact synergies are:
-
Stormcaller + Boss Power — Boss Power amplifies the per-hit damage of every weapon, but the amplification compounds more on Stormcaller's high base damage than on lower-tier weapons
-
Soul Cleaver + Demon Flanker — the demon damage aura and the Soul Cleaver slow proc combine for a roughly +45% effective damage against slowed demon-buffed heroes
-
Siege Hammer + Castle Defense — Castle Defense HP bonuses give the BOSS enough survivability to land the slow Siege Hammer hits without dying to the boss reflection aura
Synergy Tier Adjustments
| Weapon | Base Tier | With Synergy | Synergy Investment |
|---|---|---|---|
| Stormcaller | S | S+ | 400 coins (Boss Power nodes) |
| Soul Cleaver | S | S | None required |
| Siege Hammer | S | S+ | 350 coins (Castle Defense nodes) |
Frequently Asked Questions
What is the best weapon in Be The Final Boss right now?
Stormcaller is the best weapon in the live meta based on the UPD2 patch state. The 3-tile lightning line pierces through hero clusters and is the only weapon that can reliably clear the Wave 50 boss encounter.
Should I prioritize Soul Cleaver or Stormcaller?
Prioritize Soul Cleaver first because it unlocks at Wave 20 and is the strongest option for the Wave 20-29 window. Stormcaller unlocks at Wave 30, so you will naturally transition to it once you reach the second checkpoint boss.
How much do max-tier weapons cost?
Stormcaller tier 4 costs 1,800 coins total. Soul Cleaver tier 4 costs 1,200 coins total. The starter weapon tier 4 costs 600 coins total. Plan on banking roughly 3,000 coins to max out your Wave 30+ weapon path.
Are weapon tiers different on different servers?
Yes, slightly. Stormcaller is the strongest on solo servers because the lightning line covers the most ground. On 6-player coordinated servers, the Siege Hammer becomes more valuable because other BOSSes handle the AOE coverage and the single-target damage fills a unique role.
Should I buy weapons during Gold Heatwave?
Yes — Gold Heatwave doubles coin rewards, which means the optimal window to upgrade weapons is during the event. The doubled payouts mean a single match can fund an entire weapon tier upgrade instead of a half-tier.