The funny thing is that the ability is basically Icybreaker's "Icybreaker" card's ability lol... the only negative to this card is that you can only have six.
I can almost guarantee you there will be an FG eventually built around this combination. Just theoretical, perhaps aether mark, quintessence, water towers, several squids, permafrost, this card, dragons for damage, and a few wind towers similar to the fire towers divine glory has. Could even throw in a couple lobotomizers just for good measure... even if you get immortal creatures out, you'll still have to deal with permafrost shield, and a lot of the fg's creatures would be immortal as well.
An alternative would be earth mark with protect artifacts and use tridents. It won't have immortal creatures but it could get a protected trident out and then you're screwed.