Fight effects are like, just a single mana even with their most recent versions, and Im pretty sure adding a +1/+1 counter doesnt warrant multiplying its cost five-fold
Any deck can play a colorless card, which leads to cards like Skullclamp and Reckoner Bankbuster catching bans for homogenizing Magic formats
It can target any player, so its not strictly worse than any other card, but it just seems like a bad portent, when you cant just have Card not found
If you manage to drop Mystic Remora on turn one in a Commander game, then nobody is going to pay four mana and youll have too many cards in hand in seconds
It's not bad, and it's a cool nod to Coldsnap, but animating lands isn't something blue is set up to take full advantage of
Perhaps thats not a fair comparison, as D&D is so huge and personalized