This is nearly 50% higher than Bloomburrow s previous record of 12,215 concurrent players back in September last year (which, by the way, means that bunnies beat dragons in this department: Tarkir: Dragonstorm reached 12,119 players according to SteamCharts, failing to beat Bloomburrow by less than 100 players)
I just love the tension in the mini-game of rolling a d20 for the effect
Using these cards will require a lot of patience as it can give a feeling of stalling for quite a bit of the beginning of the game while cards are gathered for a powerful endgame advantage, with a lot of concentration
Turning your opponents creatures into food, while retaining all of their abilities, just has so much potential
Honorable Mention: Nine Lives Nine Lives doesn't outright say you cant lose the game, but its an interesting way to avoid losing the game
Eowyn's MTG debut is a very welcome one indeed, you'll be seeing her at more than a few tables