yugioh cartoon deck OCG Duel Monsters structure - Seto Kaiba Main Deck | Yu-Gi-Oh! Wiki

Mikaeus, the Unhallowed will trigger, bringing Gray Merchant back with a +1/+1 counter

Mudsdale's unique ability, Stamina, boosts its defense every time it takes a hit, making it a formidable opponent in battle.\n\nIn the mainline Pokmon games, Mudsdale is not a starter or legendary Pokmon, yet it plays a significant role in the strategies of many players due to its defensive prowess

Unfortunately, Kabutops has never been that valuable in any set its been included in, considering both popularity and usability

The auction can be viewed here

No one plays this old card, but I think it has legs

may go into tens of dollars