Volcanion player here, just wanted to share a bit of my opinion, and maybe answer some questions~
Honestly, I really like Skyla in this deck.
This is why~
Skyla is a great tutor card, and sometimes, Volcanion needs specific options.
High retreat costs + high attack costs... can get you into some sticky situations.
Skyla into Field Blower has won me games; Garbotoxin makes Drampa-GX much harder to KO.
I personally prefer Fighting Fury Belt, as it's more beneficial in the current meta.
The HP matters a lot on the Volcanion cards,
turning the non-EX's 130HP into 170HP.
and the EX's 180HP into 220HP.
This allows it to live Berserk attacks from Choice Band Drampa-GX.
The +10 damage is also very beneficial, and because of steam-up, you often don't need +30 from Choice Band.
a prime example is Turtonator-GX, who can OHKO Tapu Lele, as the belt makes it deal exactly 170 damage.
Now... again, this is just my opinion, but...
I actually don't like Ho-Oh-GX.
My reasoning is:
Ho-Oh does not synergize with the deck, outside of "doing damage."
It's GX attack is extremely lackluster, and I don't see myself ever needing that option.
On top of that... it does nothing on it's own.
If you miss your Kiawe early, Ho-Oh-GX is
much harder to set up.
If a Volcanion-EX isn't set-up, it can still contribute with Steam-Up.
If Turtonator-EX isn't set-up, it can Nitro Tank GX, or Shell Trap to stall.
Even though you can access Ho-Oh's 180 damage through Kiawe... I'd rather Kiawe a Turtonator-GX.
Turtonator-GX, with 4 energy, can do 160 damage in back-to-back turns... while placing energy in the discard, that Turtonator-GX can set-up later.
Turn1: Kiawe Turtonator-GX.
Turn2: Attach energy, attack for 160. Now at 3 energy.
Turn3: Attach energy, attack for 160. Now at 2 energy.
Turn4: Attach energy, attack for 160. Now at 1 energy.
Even if you miss an attachment, you can Nitro Tank GX or Shell Trap... and to me, those are just better options.
You OHKO nearly everything with one steam-up, outside of Espeon/Umbreon-GX... which will die if you have Fighting Fury Belt.
Relying heavily on Kiawe takes away from your deck's consistency.
It forces you to run more Lele's, or more Ultra Balls, etc.
and is a lot less powerful, if you're not going first.
Even if you do it Turn1, but you went second, you're setting up one Pokemon...
While your opponent has had two turns to set-up his.
Remember, most attackers in the meta only require 2 attachments.
This means, that your opponent may already be set-up, while you may not have had the chance to say...
fix your dead hand, or search for a tool card, because you needed/wanted the turn1 Kiawe.
Especially if you had to Ultra Ball for Lele, this could place you in a very bad position from the start.
You'd give up your supporter, your attacking advantage for going second, and are challenging your opponent to outpace you.
This can work, but is risky at high-level play.
I currently run 2 Max Elixirs, but I'll have to do some testing post-rotation to see if it's necessary~
I've gotten a few wins off them myself~
ex. Olympia into Staryu, attach energy, elixir, retreat into attacker~
(This is also why the free retreat Staryu is nice to have)
I'm eager to try out Acerola, as a lot of times, you get swapped into a Volcanion and your opponent tries to chip away at you... since you have 3 retreat cost, sometimes... this works.
Also good vs spread decks like Ninetales~
Not saying it's necessary, but... maybe something worth trying!
I'd argue that Altar of Sunne is far more linear, and is a dead card vs Metagross-GX.
Volcanion-EX makes the deck work, this is why we run Brooklet hill.
Getting the Staryu (for retreat shenanigans, and so we can evolve it sooner), and the Volcanion-EXs down early
are a priority.
You need the Volcanion-EX's in play to start setting up, because:
- It puts your energy in the discard, so you can accelerate it.
- It gives you something to accelerate to.
- It gives you the damage you need, so you can fight back, while setting up.
Also, once you have them down, it's alternative purpose is to snuff out opposing stadiums~
Since you don't really need the card, it's a risk free play.
But, don't forget that you can use Pokemon Stretcher, to shuffle your Volcanion-EX(s) back in, and then use Brooklet Hill to get them out!~
It can also be Ultra Ball/Space Beacon fodder... while not adding in items for Trashalanche.
Trashalanche is also the reason why this card is so good; as we can search for Volcanion-EX, without feeding the beast.
There's actually another neat tech I'd like to go over...
Ninja Boy.
I feel like most people forgot about this card, but I really like it!
There are a lot of interesting tricks you can pull off with this~
Like:
Active Turtonator-GX | Attacks for 160; discards 2 energy, 1 energy left attached.
Next turn: Ninja Boy into baby Volcanion | Attacks with Power Heater; attaches the 2 energy.
Or:
Active Volcanion-EX | Steam-Up, Ninja Boy into baby Volcanion, Brooklet Hill your Volcanion-EX back... Steam-Up again!
2 Steam-Ups, with only one Volcanion left in the deck~
I've also had someone Lysandre my Volcanion-EX, trying to force a 2HKO with their Lele, knowing they'd survive the Volcanic Heat (Garbotoxin was in play), but... I Ninja Boy'd into my Turtonator and OHKO'd them~
You could also Ninja Boy into a Staryu, and retreat, but... that only works if you haven't take damage.
ANYWAYS, giant wall of text aside...
I really like this deck~
Hope my rant was able to spark some new thoughts for you guys!