More like a disintegration field. You know how atoms are round? Not in a magnetic field of 10^5 Tesla or more they aren't. The magnetic field is strong enough to distort the electron orbitals into narrow rods and ordinary molecules just fall apart. https://www.osti.gov/etdeweb/biblio/6961623 To borrow a phrase from Randall Munroe, "you would stop being biology and start being physics."

Oh, and the vacuum becomes birefringent - the speed of light depends on its polarisation.