I was just messing with my imagination, thinking about phantoms. I thought "What would a giant phantom be like, I wonder?" And I decided to make this a suggestion.
So the room is a huuuuuuuge straight hallway, maybe 8 tiles wide and like over nine thousand long. Near where you enter, there is a part button. When everyone is on the button, there's a cutscene of a door closing behind you and a door closing on the other end of the hallway. While the camera is at the opposite end you're on, you're in the point of view of something flying toward you. Then it zooms out a bit, and you can see it looks like a phantom in fairy/orb form. Then it flashes and turns into a giant phantom looking creature, which roars. Still in the cutscene, it walks toward your party and picks up the last person to join, and eats that knight. If you're the only knight, it does not eat you. It roars again. Back to you.
If you're one who's been eaten, you now control the giant phantom thing. Shielding turns you into fairy/orb form. Your attack consists of a 5 swing combo, the first attack smashing the ground with a downward slash, an upward slash, a stab into the ground, another upward slash, then you stomping. The upward slashes start at the ground. Your charge attack is a strong upward slash while jumping up, then landing with a ground-crushing downward slash, like heavy weapons. Your weapon is a striker-like sword, like normal phantoms, and it's the only one you have.
Here's the way it/you is defeated. The rest of your party must hit it's feet like a ton of times. It then falls to the ground, where you can beat up it's head. Repeat about twice, then it spits you out, grabs the second-to-last knight to join the party, and eats him/her. Now THAT knight controls the Soul Eater. Repeat this until it's eaten every knight. After it spits out the knight who started the party, it acts by itself. It's defense and attack are buffed, and he summons some normal size phantoms. Then you beat his butt.
Now, if you're Luguiru, you're probably thinking "All you have to do if you're controlling it is sit there while your party is beating it up." Well, I thought about that. The Soul Eater will be shielded if it has not attacked in the general direction of a knight in the past 3 seconds, so you will HAVE to fight your own party to beat the boss.
When finally defeated, it drops a Soul Stone, a token. Here's a list for what you can get with them from Brinks:
1. Cursed Edge: A weapon that looks mostly like a phantom's sword. I will not list stats right now, but it has a slight chance of causing minor curse, but only with the charge attack or third hit. Acts like a normal-weight weapon, like good ol' Calibur. The charge attack is similar to a Calibur as well. Does shadow damage, and is 4*. Costs 20 Soul Stones.
2. Cursed Crossbow: A gun that looks a bit like a Sentenza, but redder. It is also horizontal, not vertical, and has a crossbow "string." It has a somewhat low speed and shoots two bullets. The charge attack is also similar to the Blaster guns, but has a bigger explosion. Has a slight chance to cause minor curse, but only on the second and charge attack. It does shadow damage, and is 4*. Costs 20 Soul Stones.
3. Cursed Dynamite: A bomb similar to a vaporizer. Has a slight chance of causing minor curse. It does shadow damage, and is 4*. Costs 15 Soul Stones.
That's all I can think of right now. Feedback appreciated :D
Needs more Madness.