Oath Sign was a Roleplay made by Grue on Space Battles Dot Com. It has by now moved to the Sufficient Velocity Forum. Both the old and the new Roleplay take place in the Fourth Grail War, where different SpaceBattlers are summoned as their Avatar, or just people from other media with a specific task to each of them. This takes place over four different parallel worlds, called Streams.
The old streams were:
Aleph Stream, known as the The Greatest Clusterfuck Of All Time.
Bet Stream of the Collateral Damage.
Gimel Stream, The Tea Party.
And the last created Dalet Stream.
There was even a thread just for Ahnenerbe Cafe meetings and Crossovers. Here: Welcome To The Ahnenerbe Cafe
Naturally all the summoned SBers haven't even been there for a full day, and everything has already gone horribly wrong.
Tropes applying to All Oath Sign Streams include:
- Anyone Can Die: So far, Luke Skywalker!Lancealot and Solar Exalt!Robotninja have fallen. Though that was because the players were kicked for various reasons.
- Came Back Wrong: This may become the fate of the Spacebattlers that got VOIDED, which means thrown out of the rpg for lack of posting. They could very well end up as the blackened evil endbosses.
- Cosmic Plaything: This goes for all Spacebattlers, though some have it worse then others.
- Jedi Truth: Many of the SBers tend to do this, especially the first time, they meet a local of the Nasuverse.
- Language Barrier: Thankfully, this is avoided. All Spacebattlers get the Japanese language added to their mind, writing included, if it isn't already part of your Avatar's memories.
- Mega Crossover: Ho, boy. Let's do a head count.
- Aleph Stream has:
- Pulsor 93 as Starkiller from Star Wars.
- Mortifer as Skulduggery Pleasant from the book series of the same name.
- Jemnite as Matoi Ryuuko from Kill la Kill.
- Prospalz as Iku Nagae from Touhou Project.
- Blackout as Soundwave and his assorted minions from Transformers Film Series.
- Silver W. King as Sawada Tsunayoshi from KHR.
- MiracleGrow as Mikuni Oriko from the Pulle Magi Spin-off series.
- Alexander89 as Jyu Viole Grace from Tower of God.
- Bet Stream has:
- SlugSLinger as Gray Fox from the Metal Gear Series.
- HK416 as Mr. Mxyzptlk from DC Universe.
- WatcherVoid as Fate/stay night Gilgamesh.
- Harouki as Kyuubey Qubeley. Basically three mechanical Kyuubeys who all hold the same person while acting as different facades of his personality. They are replaceable.
- A Nation's Virtue as Karna from Fate/Apocrypha.
- Ultra as Counter Guardian EMIYA.
- John Masaki as Pokemon Trainer RED.
- chief18753 as Archangel Imperius.
- Gimel Stream has:
- Krein-Deishou as Kaiki from the Bakemonogatari Series.
- Master Basher as The Guy from I Wanna Be the Guy.
- Heaven Canceller as Reverie Metherlence.
- Widowmaker as Egwene Al'Vere.
- id319 as Ryoko from Tenchi Muyo.
- MrGazzer as Sun Wukong, Great Sage Equal In Heaven.
- tyaty1 as Geralt of Rivia.
- fallenblades643 as Ran Yakumo from the Touhou Project.
- Dalet Stream has
- Gman 931 as Hiruzen Sarutobu
- SV5195R as Killy
- InsertCreativeNameHere as Sasuke Uchicha, HERO OF KONOHA
- Sinsystems as Daud, the Knife of Dunwall
- HegemonAlexandrov as Janus
- Murderhobo of Nod as Harime Nui
- Sonder as an Alter verion of Prototype Saber
- Hammerheadcruiser as Akemi Homura
- Aleph Stream has:
- Self-Insert: All the players are this.
- Something Only They Would Say: Several times, the participants have tested each other for being Spacebattler's by asking a question with the answer of 'One, At Sufficient Velocity.'
- Ultimate Showdown of Ultimate Destiny: This is pretty much the idea behind this. Everyone gets an objective to fulfil, whose completion decides whether the person can get home. Some objectives are mutually exclusive and some have to kill another Spacebattler.
Tropes applying to Aleph Stream include:
- Accidental Proposal: How Silver convinces MiracleGrow not to kill herself. Alexander asks if he's a Harem Protagonist.
- BFG: What Blackout is building in orbit.
- Big Damn Heroes: Prospalz, Caster, Rider, Waver, Silver and Mortifer were this to Alexander and Blackout, who were fighting a berserk Jemnite.
- Dramatic Irony:
- Mortifer was tasked to protect Blackout. The first time they met, Mortifer manages to have an entire conversation without finding out who he is, and then leaves. All of this happened because he lied about his objective, thinking he was just being cautious.
- Additionally, Prospalz. Her objective was to destroy Caster. She ended up summoning Caster.
- Driven to Suicide: Almost happened to MiracleGrow.
- Epic Fail: Jemnite's attempt at saving Sakura ended with the death of Luke!Lancealot, and Zouken gaining Force powers.
- Five-Man Band:
- From Bad to Worse: The canon version of Matou Zoken is already bad enough, but he gets extra powers for some reason or another and has become the big bad of the stream by now.
- Holographic Disguise: Mortifer's Facade serves as a magical version of this. Blackout also uses it to great effect, at one point faking that he had been transformed into Agent Smith
- I Know You Are In There Some Where Fight: The fight with Berserk Jemnite.
- Killer Game Master: It has been stated by multiple Game Masters that it is their goal to make the players suffer.
- Magically Binding Contract: Mortifer suggests using these often.
- No-Sell: Berserker did this to Blackout's orbital bombardment.
- Played With. Zouken needed a Command Spell to ensure Berserker's survival and Berserker pulled out Arondight and hit the projectile. Even then he was injured a bit and took a huge chunk of Zouken's Prana to heal himself. However he then stood up and was ready to bring the pain on the SBers if it wasn't for Zouken telling him to retreat.
- Oh, Crap!:
- The reaction when Zouken killed Luke Skywalker!Lancealot, and stole his Force powers.
- Also the reaction to Berserker surviving the orbital bombardment.
- There was also the time the SBers realized they were in a Witch's Barrier, right after the Jemnite fight.
- Only Sane Man: This is apparently MiracleGrow's opinion on her relationship with the other Spacebattlers in the stream. She gets better after a pep-talk. Everyone else has their moments as well.
- Playing with Fire: The first thing Mortifer tries to experiment with this magic, is to see if he can make his fire spells act like a flamethrower.
- Power Copying: Alexander can do this as 25th Baam. Good, he has to let others hit him with the attack first, but he managed to copy the Dying Will Flame with some work.
- Power of Rock: Blackout actually fires a Sonic Cannon, all while it's playing an OST.
- Admittedly the idea was, just like Nonon from the anime was able to weaken the synchronization between Ryuuko and Senketsu using her Symphony Regalia, he should be able to do the same to snap Berserker Jemnite out of it.
- Ship Tease: Between Prospalz and Waver. Also MiracleGrow and Silver.
- Super-Powered Evil Side: Jemnite's Berserker mode. Also, Mortifer has Lord Vile's armour, even if he hasn't used it yet.
- Worf Barrage: What the orbital strike turned out to be.
- World of Badass: Regardless of the shameless self-pandering, it is slowly turning out to be that.
Tropes applying to Bet Stream include:
- Artifact Title: "Collateral Damage Stream" is rather outdated as Aleph long since overtook Bet in that category.
- Eldritch Abomination: Since Caster's summoning, several minor abominations have been sighted roaming the streets of Fuyuki City.
- The battle with Caster involves a summoned army of eldritch abominations.
- Lighter and Softer: Compared to Aleph
- Epic Fail: Gray Fox!SlugSlinger mining the docks with military explosives ended up as this
- Mutually Assured Destruction: Why the Stream has yet to live up to it's "Collateral Damage" moniker.
- Superpower Lottery: Due to an unexpected amount of good rolls, the boy that Red saved from Bluebeard ended up with 36 magical circuits, the elemental affinity of Grain and the Origin of Miracles.
- Tag Along Kid: Taichi, a boy saved from Caster by Red!John.
Tropes applying to Gimel Stream include:
- Blood Oath: Heaven Canceler has done something like this with the local Lancer. The contract means she can only turn into her Living Weapon form together with Cu Chulainn.
- Combination Attack: Using both wind and fire, Heaven Canceler and fallenblade are trying to beat Lancelot du Lake.
- Distracted by My Own Sexy: MrGazzerMrGazzer: Gods, I'm handsome.
- Eldritch Abomination: Apparently Saya from another Urubochi story exists in this version of the Nasuverse. Considering her nature and ability to make People Go Mad from the Revelation with just a look, this is bad.
- Flat "What": MrGazzer's reaction to Phantasamoon.
- Gender Bender: Heaven Canceler has mentioned that he is actually a guy and got turned into a female by the Random Omnipotent Being. He is not happy about this.
- Lighter and Softer: Compared to Aleph, it's lighter, but no longer that much softer. See the Wham Episode below.
- Magical Girl: In the form of Phantasamoon, the strange Magical Girl form of Arcueid Brunestud. She even gives a In the Name of the Moon Speech
- Power Limiter: This is what happens to MrGazzer when he refuses to apologize to Phantasamoon after risking the destruction of the masquerade. He gets also turned into a child version of himself and gets half of his power and magical energy sealed away. Of course he is still a Super-Strong Child, but he has lost quite a bit of power. He can also only return to his normal form if he learns humility... which probably won't happen anytime soon.
- Shout-Out: One of MrGazzer's clones decides to take up a more modern appearance, and ends up looking like the Sun Wukong from RWBY.
- Small Name, Big Ego: MrGazzer. He is constantly annoyed by no-one knowing who he is. Ironically, Sun Wukong is far from unknown and he would likely get some respect if he stopped acting like himself.
- Trickster Mentor: MrGazzer starts to become this for Waver together with THE GUY. Both of them also double as Eccentric Mentor's to a degree.
- Wham Episode: Uryuu summoning Stanrobe Calhin, eleventh Dead Apostle Ancestor.
Tropes applying to the Dalet stream include:
- Evil Counterpart: Sonder, technically.