Every card in Lorcana has a casting cost indicator, an inkwell icon, which indicates which cards can be put into your inkwell, a name, classification, ink-alignment, and a text box for abilities and effects
Those cards will gain them lore passively each turn whether or not they have characters in play
Vanadiel Adventurers Laboratory Maniac at uncommon means you can actually get multiples sometimes, so there could be self-mill decks that try to win with this, Town Greeter, and Fight On
When you do, you may cast target instant or sorcery card with mana value X from a graveyard without paying its mana cost
Selvala, Heart of the Wilds A common theme among a lot of the best elves is their ability to tap for obscene amounts of mana, and Selvala, Heart of the Wilds taps for incredible bursts of mana while drawing you cards
Weve seen clone effects before, but Koh bypasses the graveyard entirely, exiling threats and keeping them in his collection forever