yugioh extra deck rules V's Hidden Room: V does Yu-Gi-Oh Yu-gi-oh GX Rulebook | PDF

I have chosen these cards purely on their design and how they are effective at doing what I have been describing

That said, the card itself is dependent on you having certain types of creatures already on the battlefield

That defense is definitely something that Moana needs, because with 3 Lore points gained per turn when she Quests, shell definitely be a target for Challenges from your opponent

Gravekeeper's Ambusher Type Effect Monster Attribute DARK Typing Spellcaster Level/Rank 4 ATK 1700 Archetype Gravekeeper's Typings Effect TCG Date 2014-01-24 OCG Date 2013-11-16 Card Text When this card is flipped face-up: You can target 1 card in your opponent's GY

It consistently holds its value and rewards patient collectors who track it down in clean condition