Pitted iron ring

[elwing]

Beware through, you're looking at a 19 combine chain... With 212 you're looking at 35 or so % chance of success... Trying this at only 200 will reduce your chance further... But not much, a good deal of the first combines will also be at max success rate at 200,only the last few combines will not be maxxed.. Still, you're probably looking at 4-5 attempts

[Ostepop]

The final combine has a trivial of 160. It's possible to buy an MQ of the difficult stuff and get down to (if the trivial charts on the wiki are correct) 5% fail rate at 165 ish skill.