Let's look at the stock list: Revival Trance is a focused Graveyard deck: I count 19 cards that put creatures into the graveyard either through milling or discarding and 25 cards that care about your graveyard, mostly reanimation but a bit of other stuff too
Beyond this, I dont have much hope for the combo in Legacy or Vintage, given how fast both are and how many better options are available
until youre sure your opponent doesnt have important items
On the one hand, Moogles' Valor looks obscenely broken in many scenarios
Buying a sealed booster box of this set will set you back well over $3,500, but if you hit a foil version of Metalworker or Yawgmoths Bargain, youll be well on your way to recouping that loss
At this point, the player in question is basically an expert at the set and would feel comfortable and confident in any setting where that set is being drafted