Its a quick-play spell that destroys one spell or trap on the field
I think when people thing about the market in a bubble they jump to Moonbreon, Battle Lilly, Alolan Friends, etc and the other waifu cards but to me those are hype cards and useless to the discussion of the overall market
If your deck cares about the graveyard at all, you ought to consider one or two of these effects
For example, I can't combine Avatar of Woe in this kind of milling deck, because I can't be sure that the opponent will have more than ten creatures in his deck
You won't find a binder large enough to house all 1,025 critters in this range, but it is the most secure I've used so far (sorry, Ultra Pro)
Its generally best to cast it on your turn, but the flexibility of playing it on your opponents turn is nice, and youll have plenty of options to discard since you see four new cards for 4 mana