Sacrifice after III.) I Return each creature that isn't a Kraken, Leviathan, Merfolk, Octopus, or Serpent to its owner's hand
I also reject a text if its ratio distance/length (percentage of errors per character) is too high
Brian Schneider, the head developer during Future Sight (not to be confused with the set's lead developer, which was Mike Turian) came up with the idea of having a cycle of slivers that each granted a new keyword to its fellow slivers
Of course, this can be used to save that creature from removal, or to simply ambush your foes with the various strong ETB effects that Wizard cards are home to
Partner this card with Sanguine Bond, and you have a nigh-unstoppable chain reaction that will drain your opponents of all their remaining life
While it feels tailor-made for answering threats that are difficult to remove, it can also be used to shuffle any annoying artifact or enchantment back into its owner's library and disrupts the topdeck manipulation that you'll see in many popular decks