Whenever River-wood becomes tapped, it deals 1 damage to you.
: Add or to your mana pool.
: Add to your mana pool. Put River-wood on top of your library.
: Return River-wood to its owner's hand.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put River-wood on top of your library.: Return River-wood to its owner's hand.
