They were both at the same time headed to get a hard to find Egyptian artifact at an antique shop that just arrived. They don't like that the other is after the same thing so they attempt to curse one another with their magical huge custom ankhs, preferably shrinking one or the other and making them into foot/hoof slaves for a while as punishment for their insolence in interference. Little do these two know they're equally matched in nearly everything. All magical curse attempts were foiled by them coming prepared already with their own magical spells and equipment that protected them from each others spellcasting. They couldn't even summon a giant demon scarab to scare the other away. Since none of them shrunk down to size or were scared off they've met equally on the "battlefield" over an antique. They decided to settle this in another way…by just grabbing a drink together.