My opponent (and some other members of the peanut gallery) were commenting about how that was about the worst Mulch imaginable
A deck focused on token generation and sacrifice effects, such as a Black/White Aristocrats or a Black/Green Sacrifice deck, would benefit from including Mirkwood Bats in its strategy
Card drawing is good, and no cards do it better than Greater Good, Harmonize, and Momentous Fall
Leaders such as Jinbe reward you for creating more of a board presence, while other Leaders like Kuzan want you to filter cards from your hand to ensure you draw what you need as soon as possible
Meanwhile, Cage of Hands and Faith's Fetters are a different kinda of Aura: the psuedo-removal kind
Annoying, powerful, and synergistic