King Ghidorah, Dragon King

Flying, Reach, Electrocution
(Electrocution does X number of damage
per black mana you control)
- To Summon King Ghidorah, you must
sacrifice X Creatures for X amount of mana in
your library.
(Example: Sacrifice 4 creatures for 4
mana of any kind, then King Ghidorah
costs that 4 mana of any kind.)