Feel free to laugh, but here is my suggestion.
Dwarf Hammer will go above and beyond when it comes to upgrading! Dwarf Hammer will upgrade 1 item a day per account. After an item has been upgraded by Dwarf Hammer it becomes account bound. (Items Account Bound by Dwarf Hammer can be removed by giving Dwarf Hammer 1 Magical Stone after 24 hours have passed since the item was upgraded.
How To Upgrade: 1,000,000z + 10 HD Elunium or 10 HD Oridecon + 1 Safe to 7 Certificate.
Dwarf Hammer will upgrade 1 item that is already upgraded to +10 or higher with a 10% chance of success.
If the item fails it becomes Account Bound and you cannot upgrade for another day. (Upgrade is not decreased and item does not break)
If the item succeeds it becomes Account Bound and you cannot upgrade for another day. (Upgrade is not decreased and item does not break)
Dwarf Hammer will only upgrade an item up to +15.