The mechanics and element of your submission CANNOT be the same as the original card.
This isn't going to be too strict, is it? Like, say the card
Frostbite by ZP was in the archives and I wanted to make a card with its name. Would something like the example card below be a valid submission?
Frostbite
3
Spell
Freeze all creature cards in the opponent's hand for two turns
(okay wait, I just realized that I ignored the part about the element having to be different, but focus on the mechanic part for now ^^ that's what I'm asking about at least)
Is this mechanic different enough from the original that it would be a valid submission? Because they both are similar with the "Freeze hand cards" thing, yet they both have different implications and implementations as well.