IF you can find a way to get a stage 2 line, multiple stage 1 lines, and draw enough energy quickly, and do all the above consistently...
It fixes a lot of things Darkrai struggles with this format...
Yes, Raichu does have 30 more HP and takes up more deck space. Everything you said is true. But there's more to Raichu than what I had already said. First of all, the deck wouldn't have to use extra bench space in order to use the GX attack, it comes with the attacker. It also doesn't have the dark type, meaning Gardy doesn't resist it. a huge problem with Darkrai was benchspace, since a lot of the deck's consistency comes from benching a lot of things, along with having too much extra space. That may sound crazy, but having a lot of "extra" space can end up becoming a problem since a lot of deckbuilders will fill the space with techs that clog your hand. And Raichu also has access to Tapu Koko GX, a non-fighting weak Pokemon that usually OHKO's something with it's GX attack with little to no setup. Raichu also has access to Brigette, which Darkrai doesn't. This is relevant for obvious reasons, which I'm guessing I "have" to explain anyways. You can grab Pikachu, Raikou, and potentially other setup/ etc. Pokemon with it, so your board advancements are far better than that of Darkrai's, potentially even relevant enough to establish itself in the meta.Could you elaborate? I was thinking that Raichu-GX does one thing clearly better than Darkrai-EX (XY: BREAKpoint 74/122, 118/122): having 30 more HP. Everything else is debatable. Raichu-GX is a Stage 1 instead of a Basic, so we have less deck space with which to work, directly relevant to our methods of supporting the cards in question. Raichu-GX has a GX-attack... but Darkrai-EX has room to add in a Basic Pokémon-GX to pick up the slack and provide additional attacking opportunities.
I don't know these things, though, just suspect them. I could easily be missing the forest for the trees. XP
Raichu also has access to Brigette, which Darkrai doesn't. This is relevant for obvious reasons, which I'm guessing I "have" to explain anyways. You can grab Pikachu, Raikou, and potentially other setup/ etc. Pokemon with it, so your board advancements are far better than that of Darkrai's, potentially even relevant enough to establish itself in the meta.
Yes, I think it's pretty safe to invest in Raichus. Even if Magnezone doesn't turn out to be the best partner for it, it's a very cheap card and you will have lost like 3-4$. I don't know if it will be top tier, but it will definitely be Tier 2. The attack is very strong, we've seen something similar (Darkrai) do well recently, and we're getting Xurkitree-GX, which will be a big boon for this deck.
As to investing in Zoroarks, definitely. It's a great card that will create its own archetypes and replace Octillery in some others.
Raichu/Magnezone is not a viable deck in this format. The huge issue it has is getting the numbers to OHKO a Gardevoir GX and Gardevoir GX can easily OHKO a Raichu GX. The fact that Raichu GX is weak to fighting does not help at all against Gardevoir GX as well because Gallade can easily OHKO it as well.
If you are taking a very unfavorable matchup to Gardevoir GX, I doubt you'll have a good time.
I prefer Electrode, especially with some cheeky Counter Catcher KOs