They are easiest to open by gently pulling apart one side and then opening all the way
In fact, only 18 of them exist, and I doubt that number will ever change
Reliability Low to Medium Many counterfeit cards copy text directly from real cards, meaning errors may not always be present
Firebending will always include a number
Also, the unholy abominations that Grusilda herself creates are combined creatures
Nuking a dual land and putting your opponent behind by a turn, while simultaneously putting yourself ahead by a turn (or four) seems devastating, especially if your curve continues well past 6 (which it ought to!) The question is not is this a good card, because the answer to that is, objectively, yes