I smell a battle between mine and yours
Roffles. Then again, that would really suck for your char - the greater the force of each sin in her opponent, the harder the spellcard is.
Now to put up Yami~
Fanfic character time...
(Fought as Reisen)
BGM: ~Break the Chain~
Name: Yami
Species: Half-Lunarian, Half-Vampire
Stage: Final (Lunar Side)
Ability: The power to summon nightfall and control the phases of the moon.
Relations: Remilia (Mistress), Sakuya (Admires)
Danmaku: High-speed, low-spread bullets and ramming attacks
Spellcards:
Darkness Moon Break "Wake Up"
His first attack, and a fairly easy one. Due to Yami's chains that restrict his power, this 'attack' is simply a weaponization of the releasing of these restraints. It's simply a few fast shots that go in one direction and leave only a small trail of bullets behind.
Wolf Sign "Garuru of the Red Moon"
Similar in appearance to Laevateinn, Yami attacks with a long laser 'blade'. However, his is not quite as big, and mainly attacks in stabbing motions which require him to rush towards that side of the screen. When he strikes that side, several high density bullet spreads come out. (Think the shots fired by Scarlet Shoot.) Difficult due to both the speed of the danmaku, as well as his never sitting still.
Liquid Sign "Bassha of the Blood Moon"
Yami fires smaller versions of the large bullet types used in Remilia and Koakuma's attacks everywhere, them bouncing off the walls endlessly. This is a spell that starts out easy, but gets insane the longer it drags on. Timing it out is massively difficult.
Thunder Sign "Dogga of the Shining Moon"
Position Reversal. Stay near the top of the screen in the beginning of this spell, where he dashes to the bottom, sending out a wave of bullets that quickly annilates anyone at the bottom screen, before firing a few more waves that head upward. Once you've dodged those, he will head back up to the top of the screen, and repeat. A simple pattern with practice, but if you let your guard down for a moment or are surprised by his dashes from the front to back of the screen, you're not likely to capture it in combination with how your bullets won't be hitting him when he's in the front and you're in the back.
Madness Sign: "Dogibaki of Earth and Moon"
A combination attack. This spell is nightmare-worthy. He starts off with the standard Dogga crash forward attack, but when he fires off any given wave, one of the Bassha bullets that bounce around forever will be in it. When he returns to the top of the screen, he swings the Garuru sword, as well, on one side, forcing you to dodge on the other one or die. When he reaches the top, Yami smashes the sword into the top of the screen, causing a Garuru attack wave. While simple in theory, it's the wildly bouncing Bassha bullets that, when combined with this attack, make it a highly fearsome move.
Yami: EX Boss Form
BGM: ~Madness of the Broken Chain~
Emperor Moon Break "Wake Up"
Darkness Moon Break on steroids. His fast shots will turn and target you the moment they hit a wall the first time, causing high speed insane dodging from the first few seconds.
Madness Sign "Garuru Fever"
Not your friend. The laser blade he makes this time is larger, and in addition to stabbing at walls, he occasionally makes a sweeping movement that requires you to circle him to avoid... this is while you are dodging the bullets created from his latest stab, too.
Madness Sign "Bassha Fever"
In addition to the painful ever-growing number of bullets bouncing about, he now adds firing lasers into the mix just to make it even more cruel.
Madness Sign "Ixa Fever"
Charges you. Period. There's no bullets to be worrying about this time. Just a high velocity boss incoming. The only way to get damage in without bombing is to trick him into a vertical charge, and even then there's only a split second to hit him and get out of the way. Not too difficult, but hard to capture due to him rarely being in firing range of your bullets.
Madness Sign "Dogibaki Fever"
Oh god. Do not want.