Orazca Puzzle-Door and Hermitic Nautilus are a couple of examples of new blue cards from The Lost Caverns of Ixalan that you can use to craft with two other nonland permanents with activated abilities for the card to transform into Locus of Enlightenment
you never want to amass a winning board only to lose everything because Tom died to a Cheeky House-Mouse
They are called black core due to the paper used to make them which has a black inner layer, instead of a blue one
With abilities that want your opponents to lose life, Lizards play well alongside direct-damage spells and combat tricks
Use them to boost its already-powerful Riotous Beating attack, dealing 20 damage for each of your Pokmon in play, and be knocking your opponents with ease
The joy of opening the new Dominaria United booster packs were also watered down somehow, as I believe there is a certain charm in opening a booster pack brought from your friendly local game store