While none of her abilities are incredibly explosive, Greta brings a lot of variety to a food-focused deck through optional draw and counters, and generating a food token on ETB keeps your cakes and pies piled high
Some suggest placing the cards in top-loaders and placing them under heavy objects, but this has mixed results
If word starts to spread around the internet, you could be paying some hefty premiums
Ultimately this falls into the category of discard outlets that cost you card advantage making it rather niche
Maybe it breaks Infect (which is already often a turn 3 kill deck, but one that can be blocked, giving it a pass)
Where it gets really interesting, though, is when you consider the sheer amount of cards that can combo with it