Be The Final Boss New Units: What the Latest Update Added, Shown In-Game
A video-sourced walkthrough of the newest Be The Final Boss update: the six new units and where they come from, raid-exclusive Imperial Vanguard and Infernal Warden, the new boss abilities, and the late-game coin sinks.
Quick answer
The update shown in the video adds six units — Crypt Squire (Rare), Abyss Stalker (Mythic), Plague Alchemist (Legendary), and the secrets Fallen Emperor, Infernal Warden, and Imperial Vanguard — plus co-op raids that award raid-exclusive units, four unlockable boss abilities, the Eclipse Greatsword and Sovereign Spear weapons, eight new skill nodes, scaled Spin Wheel Soul rewards, auto-claimed Battle Pass quests, and Robux purchases for rolled units. The channel's early verdict: Imperial Vanguard is the headline unit, and Plague Alchemist is the game's first real healer. All numbers here are video-era — verify in game.
Video source
Screenshots and steps are based on KingGoose's update-roundup gameplay video; the written steps are original. The game's own Events & Updates panel shown in the video labels the raid content Update 4 (Aug 6, 2026), but this site's update tracker only confirms Update 6 numbering first-party, so this page describes the changes without relying on a number. The channel's rankings are early impressions — verify stats, prices, and reward rules in your current game version.
KingGoose — Be the Final Boss New Units!! Updated Tier List + ALL ChangesWhat the update added
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Read the in-game changelog first
Open the Events & Updates panel at spawn. In the video, the Update 4 entry (dated Aug 6, 2026) lists raid-exclusive units Imperial Vanguard and Infernal Warden from first raid clears, and raids you can fight with a friend for a Damage Boost. The Update 3 entry (Jul 30, 2026) covers the two new weapons, eight new skill nodes, Spin Wheel Soul rewards that scale with progression, and Battle Pass quests that are now claimed automatically. The panel also lists buying rolled units with Robux when you are short on Souls. No new codes came with this update, per the video.
The game’s own changelog is the fastest summary: raids with a Damage Boost, raid-exclusive units, two new weapons, eight skill nodes, scaled Spin Wheel rewards, and auto-claimed Battle Pass quests. - 2
Meet the six new units
Six units arrived together: Crypt Squire (Rare guard), Abyss Stalker (Mythic melee), Plague Alchemist (Legendary support), and three secrets — Fallen Emperor (ranged), Infernal Warden (melee), and Imperial Vanguard (guard). Fallen Emperor comes from regular rolls; the other two secrets are raid rewards. The standout is Plague Alchemist, the game's first healer: its Alchemical Mend heals the three lowest-health allies — around 12% of max health per the video's narration — and the channel calls it worth getting, tentatively B tier with room to move. Fallen Emperor is a Demon Lord sidegrade whose aura grants allies +12% ATK and +8% crit; the channel suggests running two alongside Demon Lords.
Six units shipped at once: Crypt Squire (Rare), Abyss Stalker (Mythic), Plague Alchemist (Legendary), and the secrets Fallen Emperor, Infernal Warden, and Imperial Vanguard. - 3
Earn the raid-exclusive secrets
Imperial Vanguard and Infernal Warden come from first raid clears, and raids can be fought with a friend for a bonus Damage Boost. The Vanguard's Imperial Bulwark active grants 40% damage reduction for 4 seconds and restores 15% of max health — the channel calls it the best thing in the update, like a Bone Guard and Soul King combined. The Warden disappointed him: big numbers but no heal, and he would rather use Doomfist. He also reports that bonus rolls after dealing 30 million damage to a raid boss award a random mutation — treat that as his account until you confirm it in game.
Imperial Vanguard pairs a 40% damage reduction active with a 15% max-health heal — the channel’s early pick as the update’s best unit. - 4
Unlock the four boss abilities
Four boss abilities unlock from wave milestones: Bone Wall at Wave 250, War Cry at Wave 500 from the Thief Lord, Soul Rend at Wave 1,000, and Imperial Judgment at Wave 1,500. War Cry is the one the channel equips — the card shown in the video reads nearby minions +15% attack speed for 8 seconds on a 35-second cooldown (his narration says 50%; the on-screen card says 15%). He finds Bone Wall situational and Soul Rend weak, since your units should be doing the damage — abilities are a supplement, not a carry.
War Cry comes from the Wave 500 Thief Lord; Bone Wall, Soul Rend, and Imperial Judgment unlock at Waves 250, 1,000, and 1,500. - 5
Know the late-game money sinks before spending
The update's priciest additions are trophies. The WEAPONS shop adds Eclipse Greatsword (+4,050 damage) and the Secret rarity Sovereign Spear (+4,800), shown at 65,000,000,000 coins. Eight new skill nodes extend the Boss, Castle, Economy, Summon, and Unit branches with costs the video shows up to 100 billion coins. The channel would only consider the population node (60 extra slots for 50 billion), and says the Sovereign Spear is a better buy than the 100-billion sword-damage node if you must pick one. For most players, all of this can wait.
The two new weapons are end-game trophies — the video shows the Sovereign Spear at 65 billion coins, which the channel still prefers over the priciest skill-tree nodes.