There have been a profusion of new card treatments over the past few years
They provide the full source code at: You start with which has a web frontend to import and edit deck lists from the standards used by other MtG clients and deck tracking sites
Papa Wolf: So much that, unfortunately, he's willing to make a Deal with the Devil to restore his son
The Scars of Battle Booster Set contains 45 new-to Speed Duel cards, and 5 new Skill cards
However, a particular focus early in the game's lifespan includes many interactions with Counter Trap Cards (primarily through the Counter Fairy series), a design choice that is still carried over or encouraged in certain themes of the Type, such as "The Agent" and "Parshath", as well as some semi-generic support cards
The deck is rammed with cards that have X in their mana cost, meaning you have a ton of options right from the jump