"Gem-Knight (with glow-up valve)" Deck 2015

Playing

Since the glow-up valve is the limit, I put it in with the Lv5 synchro.
Use Rabbit, Samopuri, and Em to get Rank 4, and use leftover Lv4 and Valve from Xyz to get Lv5 Synchro.
Be sure to use Sabathiel (I don't know if it's certain because it can't be activated unless the Hanekuri has fallen) Bring Brilliant Fusion or Gem-Knight Fusion and line up gem fusions.

Strength

Gem-Knight Fusion Needless to say, the strength of the barrage.
Thanks to Em and Rabbit, Lv4 can be lined up relatively easily. They can be used as fusion materials (if you can) or they can give rank 4. Thanks to Valve, I can also get Lv5 Synchro.
It's quite fun to attack twice with Chanbara Rider and Paz (a copy of Master Diamond).
Seraphi is easy to get out of the presence of Em and Hanekuri, and increases Normal Summon power, so it plays a role in pushing.

Weakness

I don't think about defense at all, so it's tough if it's handled all at once with Mirafos or torrents.
It's rarely used, but it's pretty hard if you get hit by 《Cursed Seal of the Forbidden Spell》with Gem-Knight Fusion.
Of course, the Special Summon meta also sticks. I am also short of breath.
There are many cards you want to send to GY, such as Hanekuri, Valve, and Gem-Knight Fusion, so when sending him to GY in a chain, think carefully about which cards are best to put in GY.

Customize

Gigantes is included as an easy-to-use Lv4, but honestly it might not be necessary. I think it would be good to remove GUY and Rabbit for the second piece. Although it is attractive to have a big storm when it is destroyed in battle.
If you want to limit your opponent's Spell Trap, there's also Lightning Snowflakes.
Rank 4 is free except for chains. It's expensive, but I think Evilswarm Butte is also good.