Whenever River Catacomb becomes tapped, it deals 1 damage to you.
: Add or to your mana pool.
: Add to your mana pool. Put River Catacomb on top of your library.
, , Sacrifice River Catacomb: Target player draws two cards, then discards two cards.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put River Catacomb on top of your library., , Sacrifice River Catacomb: Target player draws two cards, then discards two cards.
