yugioh gravekeeper cards LVAL-EN084 Gravekeeper's Heretic – Rare up Attack or Defense Position Gravekeeper's Shaman - Yugipedia

A Secret Rare card, in any game (not just Lorcana!), is one that has a number which goes beyond the official number of cards in a set

You do need to watch out for the damage you place on your Pokemon because Psychic Embrace adds 2 damage counters to the Pokemon you decide to attach to for each time you use its Ability

Unleash chaos in the latest Pokmon TCG expansion with the Mega Evolution: Chaos Rising Booster Box

Like any collectible, the long-term appreciation value is anyone's guess and will depend on how long McDonalds runs the promotion, how many cards are circulated, and how many serious Pokemon TCG collectors are looking to complete their sets