This is a tier 1 for sure but you need to have all the core & tech cards.
You are not going to say that "I have only 1 Cash Cache" but it is a tier 1. - "NO"
"I have only 2 Merchants and it is a tier 1" - "NO"
More than half of the deck are Crystron card and you can't call that a Graydle deck. When you need so many Crystron cards to play Graydle then you should just play a standard Crystron deck.
Neither can it otk like blackwings because it can only summon 2600+2000 most if time with no destruction effect and any deck can get kog it was only good when ninishi was not semi limited and u could play 20 card restart with 2 trunades after restart and ninishi semi limit it sas clearly not tier 1 and now it's dead