Creature - Elemental Incarnation 6/6, 3RRR (6) Haste If a spell you control would deal damage to an opponent, prevent that damage. Put a 3/1 red Elemental Shaman creature token with haste into play for each 1 damage prevented this way. When Hostility is put into a graveyard from anywhere, shuffle it into its owner's library.
Illus. Omar Rayyan
The last ability is different from a "goes to the graveyard from play" ability in that it triggers after it is in the graveyar and not as it leaves play. This means that if it lost the ability while in play, it would still trigger, but if it loses its ability in the graveyard (as with Yixlid Jailer) that it won't trigger. [Lorwyn FAQ 2007/09/25]