Some cards are human characters, some are objects like a Pokball or a healing potion
Also notice how the 3rd Edition version uses the green mana symbol in the text box instead of 1 green mana, like the Unlimited version
Another good strategy is to put most of your cards in a defensive position, because the Yami card he plays transforms the surrounding 2-space area into dark terrain, and that can make it tougher to win.Once you beat Darkness Ruler, go duel against Bandit Keith next because his Deck Level is lower than Pegasus's
Lastly, Sphinx of the Final Word is a cool Control finisher, and I can see it having some play against Dimir and Golgari Midrange for various Control strategies in the near future
4 tight bands on Revaroom would mean it would take 400 damage to OHKO, or 260 damage a hit to 2HKO
This type of card is more special in our Yu-Gi-Oh