Jetmir, Nexus of Revels says the more the merrier, providing cascading board pumps depending on how many creatures you control
Each guild has it's own signet which produces the appropriate colors and every single one is a Cube staple
Amber ink, in particular, features a number of essential cards for early-game power, making it a necessary component in the majority of effective aggro decks in Disney Lorcana: The First Chapter
We can make that infinite damage with Tunneling Geopede for example
Dowsing Dagger: Another hoop-jumper to get where you want to go, its likely worth the effort, especially given that it costs one less mana than Gilded Lotus (two to cast, two to equip) and is less vulnerable once its a mana-producer
This characteristic should be looked for on the left side of the holographic foil - this is one of the most important points