The manga, created by Kazuki Takahashi, was published starting in 1996 under Weekly Shonen Jump, which also has titles such as Dragon Ball, Naruto, and One Piece
The best part is that it cant be normally blocked (like, who plays shadow?), so without targeted removal or a sweeper, its getting in there and staying around to buff another day
When I have Ancient Booster Energy Capsule in my list, I feel like they always get discarded to PokStop and I wish I was playing more Item cards
You can also check the lower-left corner of more recent cards, where the collector info has a rarity letter
In a mono-white Heliod deck like my own, the best option would be to target an LTB, or Indestructible (Heliod) to get an additional land in play
The prices of these cards come from TCGplayer and are subject to change over time