Pokemon Card Japanese Grookey 006/187 sv8a TCG
This pairs very well with Chocobos since they gain stats when a land enters, so if you can play multiple lands per turn, then Summon: Fat Chocobo's Kerplunk ability can make blocking your Chocobos pointless
Which makes sense when you look at its other printings: the cheapest version from Baldur's Gate is worth close to $100, for a card that is one of Magic's best dragons, an amazing treasure card, and a cEDH staple
The cards design is unique, with the text "Illustrator" written in Japanese, rather than the standard "Trainer" or "Pokmon" that appears on other cards
Creatures that enter with -1/-1 counters on them become effectively immortal when you have Mikaeus on the field, so all you need then is a sacrifice outlet like Phyrexian Altar and you form a loop that lets you draw infinite cards and create infinite mana (until you deck yourself)