He can only be summoned by Removing from Play Hamon, Uria and Raviel from your side of the field, He can't be destroyed by battle, And during your turn, His ATK skyrockets to 10,000, He has 0 ATK/0 DEF on the Opponents turn though, Here's the full thing:
""Uria, Lord of Searing Flames" + "Hamon, Lord of Striking Thunder" + "Raviel, Lord of Phantasms"
This card cannot be Special Summoned from your Extra Deck except by removing from play the above cards on your side of the field. (You do not use "Polymerization"). This card cannot be destroyed by battle. During your Main Phase 1, this card gains 10000 ATK until the End Phase."
[b]
^Now THOSE, Are Vampires!, Unlike the crappy Twilight!,
Man, Don't mess with Anya o_0 EPIC BATTLE! Poor Stark, He just wants to sleep XDCurrent Obsession: [color=crimson]VAMPIRES!! XD.