This card has a ton of value before you even get to the fact that it can copy powerful or useful non-legendary creatures
This meant that the packs werent in line with the typical thrill-based composition that Wizards of the Coast has developed for their other boosters
There are a number of things I look for in Wrath effects and this has nearly all of them going for it, more so than the top dog
If you get lucky, a single card could easily end up paying for your pack
When packs are such a crucial, time-gated resource, picking the right one to open is naturally high on players priority lists, but is this theory fuelled merely by confirmation bias or something more
Players loved it on both a storytelling and gameplay level, and since then, Transform has become a deciduous effect to add fun mechanical depth to other sets, with or without a horror theme