Swamp Tribe Resurrection Curse

Whenever a creature you don't control dies make a copy of that creature and place it down onto the battlefield under your control with haste, menace and it is also now a black and green Zombie creature addition to it's other creature types.
This swamp is merely surrounded by just legends and fables. there is surely no evil spirits that haunt these swamps... - Sgt.Trunk of Plains Tribes last words.