As it stands, it seems that Pokemon Legends: Z-A won't feature Rayquaza, Latios, and Latias, as well as their Mega Evolutions, so Storm Emerald would be a good way to still give Mega Rayquaza some love in a timeframe where players expect it to be prominent
Most decks are going to have something to block it with, so if you dont have a good way of getting it through, Id be wary
WONDERING WHAT YOUR POKMON, YU-GI-OH
Its the perfect set to reconnect with Magic: The Gathering
Decklist: Rakdos Madness in Pauper Kitchen Imp | Illustration by Evyn Fong Creature (12) Kitchen Imp x4 Sneaky Snacker x4 Voldaren Epicure x4 Enchantment (4) Instant (8) Fiery Temper x4 Lightning Bolt x4 Sorcery (20) Alms of the Vein x4 Bump in the Night x4 Chain Lightning x4 Faithless Looting x4 Grab the Prize x4 Land (16) Mountain x10 Rakdos Carnarium x2 Swamp x4 Sideboard (15) Crush x2 Distemper of the Blood x2 Dual Shot x2 Duress x3 Fodder Tosser Shatter x3 Shock x2 The curve on this Rakdos Madness list is a little nutty with just 16 land and three different creatures in Kitchen Imp, Voldaren Epicure, and Sneaky Snacker
Id consider this a staple in any group slug decks with access to the colors