"Revolving Switchyard" Rating Score by Freja

It's a revolutionary card that gave stability to the unstable train deck.
The effect of 1, is that if you summon a level 10 ground machine Special Summon, you can catch battrains etc. from the deck and make it level 10, but you will not be able to give battle damage.
Gustav can use Gustav without any problems because he can give effect damage properly just by not being able to give battle damage.
Also, it can be destroyed in battle, so when the expected amount of damage is low, I would like to actively use the effect of 1 to earn more ads.
The effect of 2, is an effect that allows you to discard unnecessary cards from your hand to GY and search for level 10 earth machines.
When I saw this effect, it reminded me of the poor example Field Spell that got hit by Dragon Ruler.
This effect is quite convenient because it can be immediately converted to a level 10 ground machine when terraforming is duplicated.
The weak point is that it hurts if you get hit by a cyclone when using the effect of 2.
Also note that either effect can only be activated once per turn.
As a bonus, the effect of 1 can be activated during the opponent's turn.
El Shaddoll You can use Battrain when you use Shekinaga in fusion or when you catch a level 10 ground machine in Libide.