If the triggered ability can't determine the information it needs, or if it can't find the objects it expects to find in certain zones, those parts of the effect just do nothing
Tireless Tracker and Elmar, Ulvenwald Informant can give you the Clue tokens needed for the time lord doctors ability
2019-01-25 If an effect allows a player to cast a spell without paying its mana cost, that player cant choose to cast it and pay its mana cost unless another rule or effect allows that player to cast it that way
Spider-Man Green Welcome Deck Returning to the land of synergy, the green Spider-Man Welcome Deck plays into the colors love of counters
"Disney Lorcana Tcg: Into The Inklands Starter Deck (Ruby & Sapphire)" is associated with the Disney, and Lorcana brands
But it wasn't really until Invasion that the occasional flirting with gold cards and mechanics really came into its own and the real power of gold cards was unleashed, alongside split cards and later hybrid