Defender (This creature can't attack.) At the beginning of your upkeep, change Wall of Tombstones's base toughness to 1 plus the number of creature cards in your graveyard. (This effect lasts indefinitely.)
NM-Mint - $6.70
Lightly Played - $6.10
Moderately Played - $5.40
Heavily Played - $4.70
Damaged - $3.40
NM-Mint Non English - $6.70
Lightly Played Non English - $6.10
Moderately Played Non English - $5.40
Heavily Played Non English - $4.70
Damaged Non English - $3.40