A Haunting in Hallowhenge

initial testing has been extremely positive. seems to be able to easily beat the bad decks people are building for dka so far and i have had moderate success against dka haunted humans and dka esper control. im not really sure about the singleton swamp, just figured why not punish them for ghost quatering my moorland haunt by enabling lingering souls flashback, but it can certainly make opening hands an auto mulligan. more testing is needed for sure. the ghost quarters in the side are for kessig wolf run and vault of the archangel (both cards are a beating and active vault is unwinnable) suggestions are welcome.