Once transformed, it becomes Polukranos, Engine of Ruin, which is a 6/6 with reach and lifelink and reads: Whenever Polukranos, Engine of Ruin or another nontoken Hydra you control dies, create a 3/3 green and white Phyrexian Hydra creature token with reach and a 3/3 green and white Phyrexian Hydra creature token with lifelink. Even without any other hydra creatures, the fact this card will split into two is amazing - but with some clever deckbuilding, it could make your deck unkillable
Sure, you might not be able to rehabilitate it into a popular new mechanic, as Chroma enjoyed when it was turned into Devotion, but you might just be able to carve a new niche vein of design space that future sets can use
Limited range, revealed information, and sorcery speed
Package Weight: about 5.7 ounces
Theres a very narrow target between alien and alienating that you want to hit
Does this mean well end up with a Modern list that uses Kess to endlessly recycle both halves of Hypnotic Sprite and Murderous Rider