Some ideas of mine

[ninthlite]

Can there be the ablity to bet cards, both players would agree to the terms (cards that are bet). Also maybe team dueling where people can partner up to duel, same game style but players can choose who to attack.
 Trading cards (with a 200 electrum fee)

[MrBlonde]

This would be easily exploitable by making multi-accounts, nymph-farming, and swapping nymphs or rares by betting those cards.

[lawlmaster09]

This would be easily exploitable by making multi-accounts, nymph-farming, and swapping nymphs or rares by betting those cards.

not really, you cant use the oracle on the first day, so it would be hard and boring and not many people would do it.

[xdude]

This would be easily exploitable by making multi-accounts, nymph-farming, and swapping nymphs or rares by betting those cards.

not really, you cant use the oracle on the first day, so it would be hard and boring and not many people would do it.

yes, you can, after doing the first few quests you can

[lawlmaster09]

This would be easily exploitable by making multi-accounts, nymph-farming, and swapping nymphs or rares by betting those cards.

not really, you cant use the oracle on the first day, so it would be hard and boring and not many people would do it.

yes, you can, after doing the first few quests you can

oh 
in that case just make it be that you cant trade your own I.P. and that you can only do it after you finish the 500-point quest