Man, this deck is hard to build!
Absolute work in progress, and sadly I don't think I'll ever get to test this, as I dont have a single copy of Call the Ancients, and I don't think I'll ever craft them. At least not in the upcoming months.
Looks like it could be super sweet, though.
Plan is basically flood your deck of
Lumen Reclaimers and Call of the Ancients while staying alive through tons of life gain and stalling, then finding the first Ancient or
Lumen Reclaimer and fucking
Mating Call it.
This is a base version which I'm not sure if it'd be successful. You would probably need to splash Justice for
Harsh Rule and
Combrei Healer.
Splashing shadow would give you access to
Haunting Scream and
Dark Return (really filling your deck with
Lumen Reclaimers).
Nightfall is key here (in theory). Cycling through your deck faster, while gaining life with the
Lunar Magus should allow for longer games. I think
Nocturnal Observer is one of the sleepers of the set. She can be a fucking beast, we just need to find her a home. 2 "free" cyclings at minimum, on a semi-decent body.
The biggest problem I see with the deck right now is that it would lose super fast to anything with Flying. There is no removal or Silence, which is probably a huge mistake. Tweaks are needed.