The card depicts a bunch of creatures inside a snow globe, and whenever one deals damage to you, it gains a globe counter to represent the fact that it's inside the snow globe
Technically, Mica, Reader of Ruins from Secrets of Strixhaven, is also responsible for a small uptick in play
She can either serve as mana ramp, creature removal, or, if you save up for her ultimate ability, you can deal 5 damage to any target every time you cast a spell, which is bound to win you the game quickly
The Water Crystal is a mill players dream
Old Gnawbone is a big dragon that can generate absurd amounts of mana, and this deck is so good at drawing cards that it could enable some truly heinous sequences where you cast multiple huge creatures in a turn, resulting in Eshki eliminating multiple opponents
Both of these are worthy of being a three-mana spell on their own, but having them both on one card makes this a great card against a lot of different decks, and you can play it without worrying about what it is your opponent might be doing