When this card is normal or special summoned, you can add 1 SPYRAL Gear card from your deck to your hand. If this card is in your graveyard, you can discard 1 card to special this card, but banish it when it leaves the field.
Konami "fixed" this card by limiting it to 1. Even if you're lucky enough to draw an Effect Veiler, Ash Blossom, or a Ghost Ogre before the player can use his effect, they can just use it's effect multiple times. Even then you still have a problem, Ghost Ogre may destroy it, but it still gets to activate it's effect and can just add SPYRAL Gear - Big Red to bring it back. And Ash Blossom or Effect Veiler may stop it from searching, but it doesn't destroy it. So someone can still do damage with it. And if you aren't lucky enough to draw those cards, it basically will most likely end in a OTK. And trust me. I've dueled enough SPYRAL decks to know how easy that one card can make it to win in 1 turn.
And also even if someone doesn't start out with it in their hand. It's easy to search for. They can search it with SPYRAL Resort, SPYRAL Master Plan, etc. Or you can special summon it with it's own effect, SPYRAL MISSION - Rescue, SPYRAL Gear - Big Red, etc.
So with this in mind. Why has this card been limited rather than banned?