If it's a fractal deck, do you need that many RoLs? Especially considering they can mess up your pillar draws. 4 RoLs should do, with added miracles.
Meanwhile, the typical upped FG grinders of choice are Pdials and VooDoo Bravery, with all the unupped grinders being just as good as each other, if incredibly painful. To my knowledge, even PDials and VDB struggles to get 60%. I don't know how a semi-upped FG grinder would get close to that.
You can find FG grinders
here.Some people may also recommend
The Brave Malignant Ball That Could for upped grinding.
Between Pdials and TBMBTC and VDB, Pdials/TBMBTC has a high winrate, but is slower, whilst VDB is a lot faster but with a sloppier win rate. All work just fine.
I would recommend Limitless Speed partially upped if you really want to FG grind unupped- That has... 30%, is it?