Genju of the Fens

Oracle Text

Enchant Swamp

2: Until end of turn, enchanted Swamp becomes a 2/2 black Spirit creature with "B: This creature gets +1/+1 until end of turn." It's still a land.

When enchanted Swamp is put into a graveyard, you may return Genju of the Fens from your graveyard to your hand.

Card Rulings

8/1/2008 A noncreature permanent that turns into a creature can attack, and its abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.
10/1/2009 Activating the ability that turns it into a creature while it’s already a creature will override any effects that set its power and/or toughness to a specific number. However, any effect that raises or lowers power and/or toughness (such as the effect created by Giant Growth, Glorious Anthem, or a +1/+1 counter) will continue to apply.