Blade Ward – Changes from an action to a reaction. Massive improvement on action economy. Imposes disadvantage on an attack rather than resistance to physical damage. Downgrade since it only affects one attack, rather than lasting the whole round, however for a single attack is a similar net effect. Overall, much improved.
Note: Jeremy mentioned its range increasing at higher levels, in the YouTube video. I think he was mixing Blade Ward up with Spare the Dying, or they failed to include the higher tier effects in the PDF, as no such modification is included here.