pokemon dark explorers booster pack 3 Blister [Krookodile] - Dark Explorers Dark Explorers 3 Pack Blister

That can be done via mana rocks: artifacts like the Signets, or Mana Crypt/Mana Vault

We commonly see print lines or surface scratches on holographic cards it can be easily done

The best thing to do is to sleeve your cards

This energy, known as Hakai, is becoming more and more prominent in Dragon Ball lore as Vegeta begins to wield it in the current arc of the manga

Cards like Seal of Doom, Seal of Primordium, Spore Frog, and Omen of the Sea are cheap ways to get spell-like effects from permanents, and many Sultai decks benefit from these kind of cards

Leader could've been a cool way to support Lorwyn tribal decks, but I imagine it would be hard to balance