I believe this is true regardless of how difficult they are to trigger, but emerging from Mortal Combat victorious seems like a breeze in a format like Commander where you can mill yourself to your heart's content with commanders like Grist, the Hunger Tide, Iname, Death Aspect (the mill comes from dumping your creatures into your 'yard on ETB), and Zask, Skittering Swarmlord
The story adds a fun bit of flavor to the adventure and moves the rest of Disney Lorcana 's narrative along
Notable Cards: Reprints and $$ Puresteel Paladin Storvald, Frost Giant Jarl Heroic Intervention Nature's Lore Basilisk Collar Robe of Stars Sword of the Animist Holy Avenger Utopia Sprawl Mantle of the Ancients Includes a 100-card ready-to-play Adventures in the Forgotten Realms Commander Deck
In the Pokemon TCG, this means that those cards have a special stamp on the art box indicating that it is a prerelease card, giving it that extra bit of scarcity and bumping up the price
Summoning sickness only affects abilities that require you to tap or untap as part of the activation cost
But he's never an LP cost because he takes damage
