Recently played through Verethragna, god this game is long.
As far as my experience with card battle eroge are concerned, Soukoku no Arterial certainly is the better game (which doesn't say a whole lot, because Arterial is not very good), but this one has plenty of H drawn by M&M, so Verethragna wins.
I can't even fault the game for having a dumb story, card games being
serious business is never anything else but dumb, everyone learned that lesson through Yu-Gi-Oh anyway. So when the game begins with "at this school, playing Verethragna is a major part of the curriculum", and ends with card battles against gods, I really can't be bothered to roll my eyes.
Gameplay is also rather bland, mostly because the card variety is abysmal, there just aren't enough unique cards to collect, which is a rather fatal flaw for a TCG. The game ends with a sequel hook, if they plan to turn this into a series I hope they quadruple the number of cards in the next game. The art for the cards is pretty at least.