The physics element of the game slightly bends reality, making way for a more thrilling experience where everything seems to be behaving as though there is less gravity. This means that cars can somewhat fly around if they hit one another or go up ramps.
Allows anyone to make any card rather than having to just rely on random luck of packs. This is done through disenchanting unused cards for a fraction of their value in order to craft needed cards with what is earned from disenchanting.
Free 2 Play with fair rewards for non-paying customers. While those that pay will have an early advantage, players can earn the same advantage with time spent in the game for free, it just takes longer.
It is possible to buy your way to more card packs but the base game is free to play and you earn in-game gold by completing 'quests' (win 2 games as a hunter, etc.) and winning standard battles which can be spent on card packs and entrance to the arena.