If you have a card that says all your goblins get a bonus, and the card in question says it's a goblin on the type line , you know you're good to go
What about the battles themselves
The standard Shinies showcase the Pokemon with sparkles in a non-full-art design, while Shiny Two cards feature a full-art shimmering illustration
3 mana for a 3 loyalty planeswalker is also an excellent rate, allowing you to play Aminatou early for access to an extra card in a pinch, providing easy setup of an inexpensive permanent with a relevant ETB ability and Aminatou on the same turn, or simply letting you play Aminatou late with mana up to protect it from countermagic or removal
At three mana, it more than pays for itself
By itself, its already okay at 2, but it can be a true Wheel of Fortune effect