MTG Arena has truly crushed the competition this year. Hearthstone now feels like a pale pretender as Arena offers players a generous alternative, un-tethered by the pay-to-win micro-transactions of its competition.
The daily quests and mastery system make the game financially accessible to folks who don't want to pour tons of money into packs. Wildcards allow for players who are unlucky to still craft the cards they need. Crafting in Arena is a superior alternative to the Hearthstone's crafting numbers game; clearly designed to leech every last dollar from their player base.
WoTC have once again proved why Magic remains the king of card games through a welcoming online medium for new and veteran players alike. Arena is a much cheaper but just as fun alternative to the pricey physical card game but feels just as worthy.