Notes & Combos
Altergeist in my opinion are in a very credible position for the current meta and can go toe-to-toe with the most prevelant decks of the format right now (including Constellar), particularly if given time to consolidate in the early phase of the game.
It also has the very welcome advantage of being able to really bully Eternal Bond players on Ladder, as per following replay (forgive any misplays on my part!)
I was very happy with the decklist used in my KOG run, though would consider swapping Security Dragon out as this didn't come up for me in any game.
Replays
https://duellinks.konami.net/att/06658567db3d0fb9e6da479dfd8289e0f6956a4a0b