It doesnt produce any mana and it instead gives an ability to every creature on the board that causes them to be destroyed unless the person controlling them keeps paying mana to prevent this from happening
The funny added hint is that the buffs include her, reminding me of when players break her out of her starting sphere grid build, and start to bonk her opponents for 99,999 damage
Theres lots of good nonlegendary goblins to copy, and with the choice between removal, a temporary mass haste enabler, or an ability that hopefully adds some goblins to your hand, theres lots of potential combinations
MENU Shop Miniatures Warhammer Citadel Reaper Miniatures Star Wars: Shatterpoint AK Interactive Monument Hobbies Red Grass Games Gamers Grass Green Stuff World Middle-Earth Strategy Battle Game Discounted Warhammer Trading Cards Union Arena Magic: The Gathering Pokemon Yu-Gi-Oh
Ive made my own top 15 of cards that cost roughly around 2-3 (at the time of writing)