  We calculate the thermal diffusion constant $D_T$ and butterfly velocity
$v_B$ in neutral magnetized plasma using holographic magnetic brane background.
We find the thermal diffusion constant satisfies Blake's bound. The constant in
the bound $D_T2\pi T/v_B^2$ is a decreasing function of magnetic field. It
approaches one half in the large magnetic field limit. We also find the
existence of a special point defined by Lyapunov exponent and butterfly
velocity on which pole-skipping phenomenon occurs.
