Ultimate Behemoth

ThunderOmni

Skills

LS
Mutant Thunder Horn

150% boost to Atk, 60% boost to max HP, boosts Atk relative to remaining HP & 150% boost to Spark damage

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ES
Fallen Gods' Devourer

Spark damage enormously boosts BB gauge, 80% boost to Spark damage & adds probable Def ignoring effect to attack

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BB
Rough Devouring
20 DC29BC

Massive Thunder attack on all foes, enormously boosts own critical hit rate, enormously boosts own Atk for 3 turns, hugely boosts own Atk relative to max HP for 3 turns & enormously boosts own Spark damage for 3 turns

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SBB
Heavy Illusion
20 DC28BC

Massive Thunder attack on all foes, enormously boosts own critical hit rate, enormously boosts own Atk for 3 turns, hugely boosts own Atk relative to max HP for 3 turns, enormously boosts own Spark damage for 3 turns, boosts own critical damage for 3 turns & enormously boosts Spark damage for 3 turns

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UBB
Devourer of Gods
40 DC32BC

Massive Thunder attack on all foes, enormously boosts own critical hit rate, enormously boosts own Atk for 3 turns, enormously boosts own Atk relative to max HP for 3 turns, enormously boosts own Spark damage for 3 turns & enormously boosts Spark damage for 3 turns

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Stats

HPATKDEFREC
Base5,7586,062793395
Lord7,5097,509991491
Anima8,6347,509991191
Breaker7,5097,809691491
Guardian7,5097,5091,291341
Oracle7,5097,509841941
Rex9,4597,7341,216716

Bonuses

Max ImpHPx25ATKx40DEFx20RECx25
Omni+1HPx28ATKx43DEFx23RECx28
Omni+2HPx34ATKx49DEFx29RECx34
Omni+3HPx43ATKx58DEFx38RECx43

Evolution

Behemoth
Bat MimicThunder Idol
Zel100,000
King Behemoth
King Behemoth
Thunder TotemBat MimicMimicThunder SpiritThunder Nymph
Zel200,000
Alpha Behemoth
Alpha Behemoth
Miracle TotemThunder TotemDragon MimicThunder SpiritThunder Nymph
Zel500,000
Omega Behemoth
Omega Behemoth
Thunder Mecha GodThunder Mecha GodMiracle TotemThunder TotemDragon MimicDragon MimicMetal MimicLegend Stone
Zel3,000,000Karma1,000,000
Ultimate Behemoth

SP Enhancements

50% boost to Atk
20 SP
Boosts 50% Atk to 100% Atk
10 SP
100% boost to Spark damage
20 SP
120% boost to Spark damage
10 SP
Breaks Atk's parameter limit
20 SP
Breaks Atk's parameter limit even further
20 SP
Breaks Atk's parameter limit even further
10 SP

Suggested SP build

Because Why Not110 SP
50% boost to Atk
20 SP
Boosts 50% Atk to 100% Atk
10 SP
100% boost to Spark damage
20 SP
120% boost to Spark damage
10 SP
Breaks Atk's parameter limit
20 SP
Raises Atk parameter limits from 150000 to 180000
20 SP
Raises Atk parameter limits from 150000 to 200000
10 SP
Notes

You can pretty much take everything from Behemoth's SP list, there is no difference according to the content you are aiming for.

by ilyes#7837, on the Brave Frontier Wiki (CC BY-SA)

Suggested spheres

Heaven's EdgeVash's Angel ArmVrána's CallingUmbra WingDark AxeTempest of AkachiMalicious TormentTarok's Bloodlust

Similar units

Roaring Skies RagraHeavenly Empress RagraNoble Prince MordredMilliaSonic Blaster VashiSilent Sentinel SilvieStorm Guardian RazakTenacious Charge MarloEternal Radiance RizeMordred

Voice Lines

Summon

I will annihilate all existence, and devour all that exists! That is all that drives me!

Evolution

My power exceeds that of a god! A single world is no longer fit to contain me! It is time to seize the might of other worlds!

Fusion

*Rooooaaaar!* More! Until I have consumed all that is, I will never be complete!

Lore

The Ultimate Behemoth is an Omega Behemoth that experienced a sudden mutation, causing it to gain unnatural power. Discontent with power sufficient to level a continent, the beast went on to assault even the Four Fallen Gods. Had it succeeded in slaying its adversaries, the beast would have certainly absorbed their power, and in doing so, would have evolved further still into a form that may have surpassed even the greatest gods. From there it would have moved on to absorb the energy of the great powers of other worlds, and the beast would truly have transcended all boundaries. With a single blow it could have shaken the heavens themselves.