Beyond the Brave

If this card is Normal or Special Summoned: You can reveal 1 Zombie monster in your hand and send 1 EARTH Zombie monster from your Deck to the GY; send the revealed monster to the GY, and if you do, this card gains 500 ATK until the end of this turn. You can only use this effect of "Long-Tailed Black Horse" once per turn.

Long-Tailed Black Horse

Maze of Muertos

If this card is in your GY, except the turn it was sent there: You can pay 1000 LP, then target 1 other Zombie monster in your GY; Special Summon both it and this card, but their effects are negated, also banish them when they leave the field. You can only use this effect of "Nurikabe" once per turn.