[quote=@demonspade64]
<Snipped quote>

When i first join this rp i sure was planning to make an half vampire character who uses the same spear that killed jesus christ, but i stop myself cause i fear it would draw a lot of flag.
[/quote]

That's already a cannon Sacred Gear; [url=http://highschooldxd.wikia.com/wiki/True_Longinus]True Longinus[/url]. It's also the namesake of the 13 Longinus (ie those uber tied Sacred Gears, like Issei's Boosted Gear)