Power reverbs. The more power, the more echo. So when a magical person such as a witch, wizard or some other type of spellcaster is reciting the lines of a curse/spell, or when a seemingly omnipotent being makes itself known, their voices suddenly [[PowerMakeover becoming]] booming and echo-y is practically a given. Same thing goes for when fighters, even the most [[BadassNormal mortal]], are [[CallingYourAttacks announcing their attacks]].

The phenomenon could be attributed to the character's supernatural qualities, but let's face it, echoes just make recitations [[RuleOfCool cooler]].

A subtrope of this is when a character speaks not with an echo but [[VoiceOfTheLegion with multiple voices simultaneously.]] Often this is because they're channelling spirits, using the power of many beings, or are some form of [[IAmLegion composite entity]]. This is likely related to the phenomenon of characters switching voices as well as bodies in FreakyFriday situations.

See also: PowerGlows, PowerFloats, PowerMakesYourVoiceDeep, and SpontaneousReverb.

----
!!Examples:

[[foldercontrol]]

[[folder:Anime and Manga]]
* Just about ''everyone'' in ''DragonballZ''.
* ''Franchise/{{Digimon}}'' in all its incarnations echoes [[CallingYourAttacks attack names.]] Can become {{Narm}}ish if the attack (or its name) is something that's [[MartialArtsAndCrafts particularly un-badass]].
* A common staple of ''SuperRobot'' pilots when [[CallingYourAttacks calling their attacks]]. An almost funny example is found in the ''VideoGame/SuperRobotWars'' series (Alpha, mostly), where Kushua's voice echoes with authority when in the cockpit of her HumongousMecha, but she's rather soft-spoken otherwise.
* '''[[Anime/TengenToppaGurrenLagann Tengen Toppa Gurren-Lagann! Lagann... Lagann...]]'''
* ''{{Mai-Otome}}'': "MATERIALIZE!"
* The claim of Masami Eiri to [[AGodAmI be a god]] is reinforced by the reverb effect of his first appearance, although this effect is intermittent in his later appearances in ''SerialExperimentsLain''.
* Spell incantations in ''MahouSenseiNegima'' anime are said in Japanese and dubbed in Latin, making it sound echo-y.
* The English dub of ''FinalFantasyUnlimited'' adds echo to Kaze's lines whenever he uses the Magun. Strangely, the original Japanese track has no such echo....
* In ''Manga/{{Bleach}}'' the Vizard [[spoiler: including Ichigo]] get this when they put on their [[SuperMode Hollow masks]].
* ''RebuildOfEvangelion 2.22'' has Shinji and Rei echoing during the TakeMyHand scene. Additionally, Rei has an otherworldly overlay in her English dub during the same scene. It ceases once she's [[spoiler:extracted from Zeruel]].
* ''Anime/TekkamanBlade'' has every Tekkaman gain an echo when they transform. Makes it much more impressive when they use [[WaveMotionGun Voltekka]]
* ''Anime/{{Hellsing}}'' uses this for most of it's more powerful characters. Especially Alucard and late, [[spoiler: Seras]].
[[/folder]]

[[folder:Comicbooks]]
* {{Galactus}} of the MarvelUniverse. A staple for when incarnating or parodying the character.
* Speedball of NewWarriors fame had a voice that echoed, befitting the kinetic nature of his powers.
[[/folder]]

[[folder:Film]]
* In ''Film/TheLordOfTheRings'', Gandalf's voice gets deep and echoes when he declares: "'''''BILBO BAGGINS --'' DO NOT TAKE ME FOR SOME CONJUROR OF ''CHEAP TRICKS!!'' I AM ''NOT'' TRYING TO ROB YOU!'''"
** Also: '''YOU... SHALL NOT... ''PASS!!!'''''
** Also heard when Saruman is chanting [[http://www.elvish.org/gwaith/sounds/saruman_spell.wav the spell]] to "bring down the mountain" on the Fellowship in the Pass of Caradhras.
* Used and promptly lampshaded in ''Film/BatmanForever'' by [[JimCarrey the Riddler]] with his delightfully hammy "If knowledge is power, then '''AGodAmI!'''"
[[/folder]]

[[folder:Literature]]
* Death's voice in the AnimatedAdaptation of the ''Literature/{{Discworld}}'' novel ''Discworld/WyrdSisters'' echoes with power constantly. This is a substitute for his voice in the books, which is rendered [[foldercontrol]]

[[folder: Like This ]]
, and is described to sound "like a lead weight in your mind."
** Also used in the animated adaptation of ''Discworld/SoulMusic''. Of course, since he's voiced by ChristopherLee, there's really no need for an echo.
** The same effect is used in the MadeForTVMovie of ''Discworld/{{Hogfather}}''.
** His granddaughter Susan can turn the effect (known as the [[/folder]]

[[folder: Voice ]]
([[Series.TheVoice No]])) on and off. When it's on, people [[CompellingVoice obey her without thinking]].
*** There are, however, limits to what [[/folder]]

[[folder: The Voice ]]
can do. For one, it is impossible for even a voice of eldritch command to get more money out of a Head Schoolmistress (in Thief Of Time.)
* In the YoungWizards books, spellcasting sometimes echoes.
* Mrs. Which's voice in Literature/AWrinkleInTime
[[/folder]]

[[folder:Live-Action TV]]
* In ''[[Series/StarTrekTheOriginalSeries Star Trek: TOS]]'' episode "Return to Tomorrow", when the aliens possess humans they gain echoing voices.
** In the second pilot "Where No Man Has Gone Before", the crewman altered by the galactic barrier gets this as well, as his condition gets more dangerous.
* In Series/HowIMetYourMother there is a flashback to Ted's days as Dr. X, a pseudo-revolutionary radio host. It is basically just Ted in front of a microphone, so he doesn't have any sort of effects and does the echoes himself. "X marks the spot-ot-ot-ot-ot"
[[/folder]]

[[folder:Tabletop Games]]
* This troper's friend has created a tabletop RPG from scratch, and one of the abilities of the wizard class is this trope, where by expending a little extra effort, a high-level wizard can make his casting heard for hundreds of yards and cause fear in enemies nearby.
* ''TabletopGame/{{Warhammer 40000}}'': The [[OurElvesAreBetter Eldar]], whenever they speak, have a slight metallic echo to their voices. It's not explained why that is.
[[/folder]]

[[folder:Videogames]]
* Almost all ''DungeonsAndDragons''-based PC games with voice do this when characters are casting spells.
** Taken to a ridiculous extreme in VideoGame/NeverwinterNights2 with the epic spell 'mass fowl' which sounds like a evil chicken clucking.
* [[spoiler:Anders]] in ''VideoGame/DragonAgeII'' gets a more echoing voice after [[spoiler:merging with the spirit of Justice]].
* In ''VideoGame/FinalFantasyIV DS'', Golbez echoes ominously with every word in voiced cutscenes. [[spoiler:The echoes stop when he's freed from Zemus' control.]]
* Lampshaded by Annah in ''VideoGame/PlanescapeTorment'' after [[spoiler: you unite with the Transcendant One in one of the endings and your voice gains that echoing quality.]]
* In ''VideoGame/{{StarCraft|I}}'', Kerrigan's voice echoes slightly after being infested. Protoss voices get a similar effect.
** Lt Samir Duran also has an echo-y voice when he becomes Infested Duran.
*** Might have more to do with the HiveMind than the power.
* Anakaris in the VideoGame/{{Darkstalkers}} series speaks like this in the original Japanese versions.
* Anyone who [[CallingYourAttacks calls their attack]] when performing a Final Smash in ''VideoGame/SuperSmashBrosBrawl.''
* [[VideoGame/MetroidPrime Dark Samus]] never speaks, but she laughs with a deep echoing sound.
* In ''NBAJam'', the announcer greets you by [[strike:saying]] yelling "WELCOME TOOOOO... NBA JA-JA-JA-JA-JA-JA-JA..."
* The Eldar of ''DawnOfWar'' all speak with a notable reverb.
** As do the Imperial Guard Psykers, when they're attacking or yelling.
** In the sequel, Kyras also speaks with a reverb. [[spoiler:It's evidently the Chaos taint]].
* [[LeagueOfLegends "Immense power is fun! You should try it sometime!"]]
** [[OhCrap DAAAAARKNESSSS...]]
[[/folder]]

[[folder:Web Originals]]
* ''WhateleyUniverse'' example: the [[spoiler:demon]] of "Ayla and the Grinch" speaks like this.
* Given that it's one long {{Homage}} to ''DragonballZ'' and the RuleOfCool in general, characters in ''SuperMarioBrosZ'' have a tendency to do this when powered up. Mario in particular gets an impressive one when obtaining a ''[[MundaneMadeAwesome fire flower]]''.
* When using magic in ''Literature/{{Phaeton}}'' speech echoes, this is actually the sound of the voice extending to the various planes of existance.
[[/folder]]

[[folder:Western Animation]]
* In ''WesternAnimation/JusticeLeague'':
-->'''DoctorFate''': So fate demands! So... fate... demands...!
* Gwen, the MagicalGirl of ''WesternAnimation/{{Ben 10}}'', is quite possibly the current undisputed champion of this trope in the west.
* ''WesternAnimation/TeenTitans'': Raven, when she recites the spell to release Malchior and later to open the portal to Azarath.
* Spoofed in an episode of ''Disney/{{Hercules}}: The Animated Series'', in which the [[CrossoverCosmology Egyptian god Ra]] speaks with PowerEchoes, but after a while, presses a button on his staff that turns it off. He felt that while good for introduction, the echoing tends to grate on you.
* ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983'': "I-I HAVE-AVE-AVE THE POWER-ER-ER-ER-ER-ER!!!!!"
* ''WesternAnimation/InvaderZim'': SPAAAAAAACE MEEEEEAAT!!!
** Not having access to that technology, they make theirs out of "Napkin".
* In ''ThePenguinsOfMadagascar'', "Two Feet High and Rising" features King Julien declaring a new law, and Mauriceadds echoes for dramatic effect.
* ''WesternAnimation/{{Centurions}}'': "POWER EXTREME!-REME...reme...reme..."
* In an episode of ''TheTick'', when Arthur starts using Baron Violent's power belt, along with making him bigger, stronger and more aggressive, Arthur's voice starts to echo.
* Parodied in ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'', in the episode "The Secret Snake Club." Club leader "Wiggly" repeatedly refers to the club's secret "'''''AGENDA'''''"; each time he says the word "AGENDA," it's accompanied by a booming echo, dramatic chords, and lightning. After a few times:
-->*Viper*: I want to try that! '''''AGENDA!''''' ''[echo, chords, lightning]'' ...Neat!
** Wiggly gets fed up with this, and institutes a new rule:
--->*Wiggly*: "From now on, *I* am the only one who can say '''''AGENDA''''' ''[abrupt echo/chords/lightning]'', you got that?"
* ''BionicSix'': "Bionics On! On... on...on..."
* Magic-users of sufficient power have this in ''WesternAnimation/{{WITCH}}'' - it's demonstrated by Cornelia when wielding the combined powers of the Guardians, Nerissa after absorbing the powers of the ''original'' guardians, Phobos both when he's combined his power and Elyon's and when using the Seal of Nerissa [[spoiler: and Cedric after eating Phobos and acquiring his ''and'' the Seal's power]].
* In ''{{Bionicle}} 2: Legends of Metru Nui'', [[BigBad Makuta]] delivers his line "Come. Join my brothers and me" with an echo effect added over his voice. In most dubs, though, they simply enahnced his [[GutturalGrowler already deep]], robotic tone to create a wholly different effect.
* [[GodEmpress Princess]] [[DarkIsNotEvil Luna]] in ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' '''[[NoIndoorVoice DOES THIS ALL THE TIME]]'''. She's struggling to break the habit after [[FishOutOfTemporalWater having been gone for one thousand years]], due to outdated royal protocols.
** She manages to rid herself of the echo eventually, but has more trouble shaking off the FloweryElizabethanEnglish that comes with it.
[[/folder]]

----