Best Items for future Mercedes?

My hat is fine, and before I say it. Any links to fusion. This is semi new to me.

It's a profession for maple. There's a guide somewhere in the maple guides section.

You could also try to get as many common items as possible (like a PAC or a 71+ cape with potential) Most of these can be found as drops (the capes at least). Like my +4, +4 + 2% str cape from training at captains for levels 100-110 on my shadower.