Hey ! We all love Yomi, and something I particulary love with this game is its huge casting of awesome characters with crazy abilities ! 
20 characters is really a LOT, and more characters would probably mean less balance (and less fun ?). Erf but Sirlin is the best in the world at balancing a competitive game, so maybe one day 
Nevertheless, I’m still wondering how Codex characters would be if they were in Yomi !
[details=1- Prynn]Prynn’s main theme is here interaction with time. Althrough she can sometime get things back from the Past, her main mechanic is Fading, giving her a melancholic flavour. What Fading makes me think about : Majora’s Mask, Braid, and nostalgia in general. Maybe Vanitas too.
Ok we could simply give her a mechanic of retrieving cards from discard, but that would not express the Fading mechanic. The time in Yomi is expressed by the deck size (at 0 time is out). Would some mechanic about that be actually fun to play with ?
I believe it worths a try ! Let’s begin by a character ability “Whenever someone has no card to draw from deck, Prynn wins”. Hey, sounds weird nah ? Of course that’s stupid for mirror matchup, and that should way amongst others for Prynn to win the game.
That would involve cards to make Prynn control her opponent’s deck size (mmm maybe a bad idea, it would be very had to balance the matchups against characters that draw a lot like Setsuki and characters that draw almost only 1 per turn such as DeGrey) or her own deck size (I think it’s better !). Ok so maybe some cards could make her discard/trash some cards from deck as additionnal effect ? So Prynn could be unique as a defensive (blocks make draw) but fragile character.
One other idea could involve discard/trash zone. Trash is maybe more related to Menelker and Oblivion, so why not giving Prynn some ability to make opponent’s discard cards go back in his deck ? In that way, she could dilute opponent’s deck with crap cards. Of course that ability would be insanely powerful against Quince, Persephone, Gloria and any character that can get cards back from discard, so we would have to rebalance things a bit somewhere[/details]
[details=2 - Vir]Vir’s main mechanic in Codex is to peek his next deck’s card to have a look on it and maybe play it. Ok that’s totally possible to transpose it directly in Yomi as a character ability. This could be something like “Draw phase : after having drawn a card, have a look on the next deck’s card.” and maybe something like “you can combat-reveal it in place of you combat phase card” or “you can use it as a combo or dodge followup” or something like that, but I honestly don’t think it would be as flavourful as a simple look on the future.
We could also imagine things related to forecast (an ace that deals its damages three turns later than when it’s played ?), I don’t think that it would be that fun to play.
In my opinion, Vir should just be a slow beefy character with short combos. I played a bit Street Fighter X Tekken, and Marduk is exactly the kind of character I’m thinking about. Something that would be fun to implement on Vir could be the juggles, as big combos set up after a throw. Maybe Vir’s throws could give him extra combo points and still KD even if it’s followed up by a combo ?[/details]
[details=3 - Vandy]Vandy’s main mechanics in Codex are sacrificing units, Faustian bargains (ya Garth too for this one) and huge units. There is also the “chain” theme of Terras Q and Metamorphosis.
One idea could be to make Vandy sacrifice her own arms and legs during the fight. I could imagine powerful aces, and playing the hearth ace would mean you won’t be able to play anymore hearth card during the game. Or an effect applying only to either normal or face cards.. Ok that’s a pretty violent mechanic that would add a lot of random on the game. I don’t know if it would be nice or not, but really there is a flavour behind.
Else I’d see Vandy as a very balanced character. Not too glasscannon, not too tanky, with good slow and quick attacks, good throws, dodges and blocks. Maybe some flying ability could be cool (“Draw : can decide to fly this turn, combat phase is skipped”) to let her delay the fight.
Or maybe flight could be an extension to crossup, opponents never being able to block odd normal attacks with even blocks and vice versa, even standing. And a undodgeable face attack to compensate it for balancing purpose. I believe that could be kinda fun ![/details]
[details=4 - Orpal]Ok main Orpal’s abilities in codex are attacks decreasing opponents’ strength and card depletion. That’s immediately transposable to Yomi too.
Maybe -1/-1 damages would not fit as a subtraction (because some characters do a lot of little damages and others do sometime big crushes), maybe not as a pure division too (halfing next round’s damages could benefit to poke characters such as Lum or Vendetta). So why not making some face cards substract a number from next round’s damage (or maybe entire’s game damage) and some face cards halve the next round’s damage ?
We can also stop thinking about damages and just decrease opponent’s speed. Why not disease runes making all opponent’s attacks and throws 1 speed slower during the entire game ?
Making opponent discard cards is an important mechanic for Orpal too, but as it’s already exploited by Menelker, Orpal should not be 100% on this idea. Discarding at random and making an opponent discard a card of his choice is very different too, so things to think about it.
Except that, I think Orpal should be slow, tanky and low damage, in pure Warhammer Nurgle style ![/details]
[details=5 - Garth]Ok Garth is mainly about summoning minions and making things ressurect. I’m not very inspired for this one, minions could be some walls that prevent damages or combos, and resurrect could mean using discard. Why not using opponent’s discard against him ? I mean, it’s open to read so Garth could use them to do effects or damages.
Garth is an anatomist so self-healing is also important. I’d see him with many dodges and poke, as a fool but vicious character.[/details]
6 - Bigby
Bigby is all about controlling, so preventing an opponent to use a certain type of cards (face/normal, attack/throw/blodge, hearth/spades/club/diamond, etc.) would make sens. He also has an iron fist, so DarthVader-style non-KD-ing throws are expected. Heavy hits and Balrog-style charge moves could be nice too (choosing the card you will play 1 turn in advance for some moves for example).
7 - Calamandra
Calamandra is all about furry and wild things. Forcing her to follow-up attacks throws and dodges with mandatory combo could be a nice transcription of non-temperance-style. I’d see her pretty much as T-Hawk, not only for the theme but also the straightforwardness. Making her have few dodges could be nice too.
[details=8 - Drakk]Mmm Drakk is vicious, Drakk is a drummer and Drakk fears nothing. I’d see some ability related with drums (ex: Resonnance, if there is an attack or throw clash, opponent takes 20 damages) and card to adjust Drakk’s speed to be in coordination with is opponent to trigger Resonnance.
I’d also expect a vicious opponent with dodges, fast attacks and attacking even knocked-down opponents.[/details]
[details=9 - River]Ok, this one is more “chevaleresque”. We need a quick fighter, with low-risk low-reward moves and a lot of dodges and poke. Maybe foil/rapier can transcribe in a “bleeding” ability. I don’t know what it would mean, making the opponent discard a card when touched, giving him damages over time or preventing him to use jokers for a turn.
We could also think about a “Parade” ability, that would damage opponents when River blocks them.[/details]
[details=10 - ?]We could also imagine a fresh new character on the cast, or an existing one in the lore of Codex ! I’m rating ideas in an order I’d have hype for them !
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C : moderate hype — there are several Legendary characters in Codex, each one could make a new Yomi character. Galina Glimmer, Jandra, the Negator or Macciatus, the Whisperer. All of them are kinda fun, they are our C on our hype scale, meaning moderate hype.
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B : high hype — Jade Fox is awesome. She is an old women, something that’s rarely seen in video games (I have only in mind Overwatch and some Naruto games). She is experimented, but old, so that would compensate her huge knowledge of the art of fighting. She is a teacher, so teaching could be her motivation to participate to Fantasy Strike. Teaching could also be part of her mechanics, opponents improving their abilities during time (more damages, combo points, card drawing, etc.).
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A : awesome hype — Terras Q is the typical codex card : it’s totally overpowered, such as all Tech II cards are ! Getting out of chains could be an awesome mechanic to implement and wow, that beast is furious ! Definitely a character I would love to see in Yomi !
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S : monumental hype — We all want him part of our favourite fighting card game. What is more, his chara-design would allow a lot of possibilities of his game mechanics. We could even implement abstract things and make him play Yomi completely weirdly. Why not playing Yomi with a Codex and deckbuilding during the game ? Or what about having an inverse priority circle, with attacks doing no damages but making draw, throws allowing huge combos and blocks knocking opponents down ? Let’s be crazy !
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How would you see them in this game ? 
.oO(Calamandra can’t summon pigeons… yet)(edited)