back of japanese pokemon cards vs English Pokémon Cards: Trade Value, Rarity, and Collector – Ravaver pokemon japanese card back CGC

The Mechanist, Aerial Artisan's activated ability doesn't remove any abilities the target artifact token has

Cemetery Desecrator Cemetery Desecrator exiles a card from a graveyard when it enters or dies, then either removes X counters from a permanent or gives a creature X/X, where X is the exiled cards mana value

The answers to these will help guide you more

2 Celebi ex The Real Mythical Pokmon Of all of the new additions in the Mythical Island expansion, Celebi ex is by far the strongest, and when set up correctly, it appears to be unstoppable

Being a way worse card of an archetype staple doesn't make Upgrade unplayable, however

These cards are highly coveted by collectors.