So which characters in the X-Verse can penetrate Classic Magneto's Force Field?

And the answer will be....................

Ororo Munroe aka Storm.

She did it before.

jean grey/rachel grey

havok

fire star/sunfire

apparently, magneto's force field has weak spots and tk users can pass through those weak spots and his shield weakens with too much heat

Pretty much everyone with decent level damage output , TK and molecular/atomic manipulation.

When writers want fav. characters do just that.

Assuming it's a full body one , no one bar god tiers.