Emerald Emerald is an Ink color in Disney Lorcana that is gifted with the ability to adapt to changing circumstances, according to Ravensburger
Enter the battlefield effects are great
It builds on the strength of the creatures in the deck to wrest control of its own creatures from the opponent
For three mana, it lets you destroy all creatures that entered the battlefield that turn - or you can exile a black card from your hand to play it for free
The Japanese side of the hobby answers it differently, and reaching that market takes one extra step: What the first Japanese Base Set printing looks like How to buy from Japanese marketplaces from outside Japan Neither part is complicated, but the terminology doesnt carry across
Sometimes that effect can be underwhelming because you simply dont have something to put into play, but with all the cards Eshki draws you, I dont foresee that being a major problem