Weapons: I would recommend only using BOTA and Death Scythe… But if you insist using other weapons then prepare to see that game over screen. I wish you good luck. She is beatable using any weapon, but it’s a pain to keep up the pace. She can really mess up your mind if you trying to be awesome with a non-recommended weapon.
Blades of the Archfiend!(BOTA) Timing is everything. This weapon has an invincible frame which is the 360
. This will allow you to defeat her quickly. So when do you attack her? You attack her a few ways. #1 after she finishes her dashes. #2 after she finishes her 4 hit combo. #3 after her tail misses you. As long as you get the timing right. You can avoid being hit by her and you can cause great damage her. She hates it.
When she is in the air you can perform a combo on her, but its risky and I forbid you to do it. But if you’re having fun go ahead and try it. When she does any attack try to avoid it quick then input this combo
(hold) forward
. If done correctly you will damage and avoid her attack at the same time. Another thing you can do when she is in the air is flying swallow her. If done at the precise timing, she will fall the floor. You can damage her, but only briefly or she’ll grab you and end your life.
Recommended combo: (On the ground) 360
, (In the air)
(hold) forward
Death Scythe! (D-S) When using this weapon your main concern should be distance. Stay away from her. Next, you have to (UT) Ultimate Technique her. A fully charged UT takes more damage. Remember to watch out for her dashes because she is more likely to try them on you if she sees you charging a UT so be careful. You can use a combo after her 4x hit combo.
Recommended combo: 
(only after 4x hit combo), UT (hold)
Here is the recommended way of defeating her! I have not finsh creating a video for all weapons against her.
Zedonius: The Greater Fiend Of Flame!
Difficulty 6/10
Tips on what to avoid: Always avoid his grabs and final hits of his combos!
The Grand Ray Beam! Zed will pose almost like he’s powering up. Then he releases a powerful beam of fire. It's real easy to avoid. When he’s shooting this beam you can attack him relentlessly. It’s his weakness.
The Flames Of The Underworld! Zed will raise his arm like he’s doing an uppercut. The flames will come out of a red outline (circle). You will see the outline of red beneath you before-hand. So jump out of the outline. Super easy to avoid.
The Hellish Ground Pound! (Only when he’s in midair) I call this a focus alert! Zed will levitate in the air and pounce on you really fast with flames. You can counter this, but avoid doing so. Pay attention, if he jumps off the screen you need to time your dodging or it could be fatal.
The Fireball Volley! (Ultimate Technique) He throws 4 fireballs continuously. Zed spams this move quite frequently sometimes. To avoid this (depending on your weapon and skill) you must flying swallow him. You can dodge it but timing is very limited and you will take damage as well.
The Fire Wave! Zed unleash a wave of fire at you. To avoid, simply dodge at the precise timing or jump over the wave, but it can be tricky.
Weapons: Zed is a moderate greater fiend so attacking him is easy, but don’t attack him relentlessly or he will grab you.
Lunar! Don’t spam with this weapon. You will be vulnerable against The Fireball Volley. I wouldn’t recommend using this weapon against him
Recommended combo: .
Death Scythe! You can spam with weapon, but be careful… Zed grabs often. This weapon is recommended because you aren’t vulnerable to anything Zed throws at you.
Recommended combo: any 4 hit combo of your choosing or
.
Blades of the Archfiend! Best weapon for handling him. This weapon hurts Zed the most. You can also 360
when he does The Hellish Ground Pound
Recommended combo: , forward
(hold), also during The Grand Ray Beam keep tapping
behind him
Kusari-Gama! Not a good weapon against Zed. You are vulnerable against The Fireball Volley so be careful. Running and tapping
takes a good amount of damage.
Recommended combo: (while running towards him),
(only after he tries to grab you)
Tonfas! My friends! Good weapon if you love them. You’re not vulnerable to anything, but be careful if your too close. Sometimes you’ll miss your target.
Recommended combo: forward
True Dragon Sword! Good weapon if you love it. Nothing special here (same as above methods)
Recommended combo: (when there's an opening)
Vigoorian Flails! Good weapon as well. You can spam but be careful again! Zed grabs a lot.
Recommended combo: forward
forward
(spam)
Emma Fang! You are vulnerable with the weapon because its slow and you need to be fast to avoid and attack Zed. Only use this weapon if you are only wanting to have fun.
Recommended combo:
Falcon Talons! A good weapon. Nothing special and you are not vulnerable to any of his attacks.
Recommended combo:
Here is a video of me in action. It will show you how to beat them with all weapons
Alexei: The Greater Fiend Of Lightning
Alexei and Volf are the easiest of the greater fiends
Difficulty: 4/10
Tips on what to avoid: Try your best to keep from getting in the air. This fiend will become very annoying with lightning spams. Also avoid his uppercuts.
Grabs! Jeez these grabs are annoying because its instant death. It very easy to read so dodge them or jump over his grab.
Lightning Tornado! Alexei beginning ballet, surrounding himself in a spiral of lightning. Very easy to dodge. Tonfas and BOTA has an I-frame 360
to avoid being hit if you choose not to dodge.
Aerial Assault! Alexei dashes at you, but instead of hitting you he will grab you and this results in instant death.
Giga-watt Ground Smash! Alexei gets mad at you and perform this attack. He jumps into air and pounce the ground and anything in the range of it gets affected by lightning. This is also easy to avoid. You can either dodge to his arm when he lands the attack or you can jump over it.
I Am Alexei! (on ground) When Alexei health is low he'll power up, this increases the damage of all his abilities. On the ground, if he is not in check, get ready to experience hell. Aerial Assault is now up to 2-3 times and he will spams Lightning!
I Am Alexei! (mid-air) He will spam Lightning this is annoying to dodge. The only thing that can save you is if you strike him in the air.
Lightning! (mid-air spam) In the air, Lightning has 2 different attacks so be aware of them all! #1 He will send regular bolts of lightning towards you. To avoid it jump and dodge them. Ninpo him or if close strike him hard. #2 He raises his arm and launches lightning volleys that hits everything that area. So simply jump and dodge over it.
Lightning! (on ground) He fires regular lightning volleys that if this was a pro baseball game we would get strike out. But anyways just dodge them. Don’t block them unless you are at a good enough distance. If you block them you’ll be stunned and hard for you to dodge his aerial assault.
Weapons: You can have fun against this fiend because every weapon works and as long you avoid everything above you’ll be fine
Blades Of The Archfiend! (BOTA) (the best weapon against him) you can 360
during Alexei’s Giga-watt ground smash and lightning tornado.
Recommended combo:
, forward
(hold)
Death Scythe! (D-S) you can jump and press
during Alexei’s Giga-watt ground smash. Any 4 hit combo will be sufficient.
Recommended combo:
,
Tonfas! You can also 360
during Alexei’s lightning tornado
Recommended combo: forward
forward
, forward
Kusari-Gama! You are vulnerable sometimes but as long as you follow the tips above, you shouldn’t have any problem. Don’t spam either or you will be victim of the game over screen.
Recommended combo: My combo -
(stop)