Adventures in the Forgotten Realms is the first Magic: The Gathering expansion to take inspiration from Dungeons & Dragons, featuring monsters, items, locations and other elements from the tabletop RPGs central setting of the Forgotten Realms
At the bottom right of every Pokmon card is the label 'Retreat Cost.' In exchange for discarding a set amount of Energy, retreating allows your Pokmon to move back to the bench, usually to avoid a knockout or to let a different Pokmon start attacking
ST10-013-eustasscaptainkid's effect means that any opponents will have to have 7000 power on any of their attacks to threaten you, but even then, a simple counter can deal with those
What are the weaknesses and retreat cost of this Musharna card
Initially, I gave this card Ability to reduce 20 damage for each Price card your opponent had taken