For example, Brago, King Eternal decks love Strionic Resonator so they'll run Lithoform Engine to also copy triggered abilities, but in the game they may also want to copy an activated ability like cracking a Flooded Strand for two lands, or copy Diluvian Primordial if they have four extra mana when they cast it
The triggered ability is not fully replicated on others though Sautekh Immortal and Bloodcrazed Paladin come close
He also enables on-curve Shifting for cards that didn't previously have a good target, such as Beast - Tragic Hero and Belle - Hidden Archer
He's probably the most fun of any here
It's an inefficient sacrifice outlet but its activated ability is not what makes it useable
As we mentioned before, the different types of character cards are key to understanding the story of Lorcana, but its not always easy telling the difference between them, so McFerrin laid out the specifics