From a market perspective, trading cards now span multiple segments
What was once an eclectic selection of cards from across the generations was now a hodgepodge of whatever cards a shop could scramble together without selling immediately
Lands decks get a big pickup in Worldsouls Rage, a kill spell that can single-handedly put the Omnath train in service while also removing an opposing creature
The downside, however, is that they can have high retreat costs, often require a good amount of Energy cards and, if knocked out, result in your opponent gaining two points rather than the standard one
Halloween itself dates back centuries, with the festival of Allhallowtide believed to be the origin of trick-or-treating, as it was customary to bake soul cakes and give them to "soulers" who traveled door to door, much like winter carolers.