Windreaver
Dissension — rare
Creature — Elemental
Windreaver rulings:
2013-04-15: Effects that switch power and toughness apply after all other effects that change power and/or toughness, regardless of which effect was created first.
2013-04-15: Switching a creature’s power and toughness twice (or any even number of times) effectively returns the creature to the power and toughness it had before any switches.