5D's Tag Force 5
Interestingly, out of all of those sets, many of the most valuable cards come from the seventh expansion, Evolving Skies
This does come at a cost Japanese cards are generally more expensive than English cards on average, especially for special releases, simply because they are harder to get outside Japan
Most artifacts are colorless and can be cast with any type of mana, but some require mana of a specific color
Death Baron (and friends) Right before rotation, Monoblack Zombies with Cryptbreaker, Relentless Dead, and Diregraf Colossus was one of the most powerful decks in Standard
After they are played onto the field, they stay there unless removed in some way, and their effects are applied as long as they are on the field