Be wary, as exile effects and stat reduction abilities can still send Vecna back from whence he came
You seem to be spending some decent money on your collection goals and no one knows everything when they start, so ebay should be able to cancel your bid (call if necessary) and take it all as a learning experience
First, the champion, playing Mono-Black Necro Control: Creatures (7) Lands (23) Spells (30) 4 Nevinyrral's Disk 1 Hymn to Tourach 4 Necropotence 1 Ivory Tower 4 Dark Ritual 4 Drain Life 3 Stupor 2 Mind Warp 3 Contagion 1 Serrated Arrows 2 Demonic Consultation 1 Zuran Orb Sideboard Then, in third place, representing the aggro decks of the format, Brian Hackers Bad Moon Necro: Creatures (19) Lands (21) Spells (20) And then finally carrying on the fine tradition of B/r Necro-decks, Chris Pikula, who actually increased the red presence in the deck with Incinerates and multiple maindeck Shatters (Winter Orb, Howling Mine, Serrated Arrows, even Black Vise, Ivory Tower, and Zuran Orb were worthy targets)
The card has continued to be banned in Commander for years because of the overwhelming value produced by its enters-the-battlefield trigger." Dockside Extortionist, perhaps the most controversial goblin in Commanders history, saw its price jump by 166%
Making a Pokmon like Melmetal, with its inorganic body, look alive, took effort, but it was a valuable and rewarding experience