If the enchanted creature has any subtypes other than creature types, such as Equipment, Vehicle, or Urza's, it loses those as well
Spirit Water Revival, from Avatar: The Last Airbender , has a huge ceiling: you reshuffle your graveyard, draw a huge amount of cards (nine in total!), and on top of that you get the effect that gets Spirit Water Revival into this ranking: no maximum hand size
This then allows you to exile the top card from your library which you may play that turn
Hell be chewing on your biggest threats time and time again
This makes many underpowered wurms, like Vastwood Gorger, suddenly a fair price for their actual stats