Toxtricity (Mirror Holofoil) from the SI: Start Deck 100 set is a notable Unknown rarity card, numbered 158 out of 414 in the Pokémon Trading Card Game. As a Japanese variant, it features a distinctive holographic finish that appeals to collectors. Currently valued at approximately $7.35, its market presence reflects both interest in the character and the popularity of the set within the Pokémon community.