Dedicated card sites like TCGPlayer, as well as marketplaces like eBay or Amazon, should provide you with good coverage
The downside is that you can only special summon fiend monsters after this card gets special summoned by any way
Tamer Editor just requires two level 5 or higher Gladiator Beasts and he hits the board, this is where Augustus from earlier comes in big as a super easy way to make Tamer Editor
Teval, the Balanced Scale Similar to Terra, Herald of Hope, swinging with Teval, the Balanced Scale mills on attack, but it offers a different approach as it replays a land from the bin tapped, and then you get Zombie Druid tokens whenever cards leave your graveyard
Audience Surrogate: Your character represents you and is best friends with Yugi and Joey as he becomes a better duelist