Its ability immediately doubles your creatures power and toughness during combat, so you can get a massive attack the turn Zopandrel hits the battlefield
Oh, and of course Soultraders a zombie, in addition to having two other relevant creature types
This means you've spent the required ink and placed them on the table face-up - it doesn't generally refer to cards in your hand or discard pile
The other direction that Im wondering about is whether G/B Ramp can be adjusted to better target the metagame as it exists today
The best Shift target is probably Peter Pan - Never Landing but if you want to stick to Ruby cards, it would be the Peter Pan we just looked at, Peter Pan - Never Land Hero
Disney Lorcana's second expansion, Into the Inklands, features a pair of starter decks built to show off the set's Disney Afternoon-themed cards, as well as its core mechanic, Locations