Seven days to make a Veronif’s Diary. 

Seven days to make new AR33/34 Valeron’s Powder. It’s (as in AR34 Valeron’s Powder) not tradeable yet at the moment so just keep it for now till it will be. Should be tradeable around Armonia EP5.5. Considering this will be the era of ‘Evil Weapons’, you’ll need all the AR 34 Valeron’s Powder in the world.

Fifteen Days to make an Evil Weapon. 

Sounds just about good to me.