So long as Kiki-Jiki, Mirror Breaker is on top of your library, the Snoop sees it and can use its copy ability to make a copy of itself, which can then create a copy of itself, etc
The green was a digital enhancement to the drawing
However, Big Shield Gardna is sometimes played alongside Cat and without Necrovalley, since it eats Nobleman of Crossout plays, and sits under Skill Drain incredibly well
By lowering the cost of each of these tutors by , having them only focus on a specific card type, and having them place the card on top of your library instead of into your hand, these one-mana instants were meant to be more balanced versions of the original tutor
That isnt to say that the cards are bad
You may cast up to two spells from among the other cards exiled this way without paying their mana costs. Basically, everyone exiles cards until they hit a nonland card, then one opponent can pick one of those cards, which you cant choose