The Wrath Of Magic

If your ward is broken by damage other than the
chosen type, and the damage flowing over would
reduce your hit points to zero that damage is
negated and the ward shatters, exploding into all
directions in a 20ft radius. All creatures in the
area other than you are pushed back 15ft and
must make a dexterity saving throw taking 6d8
+ your sorcerer level force damage on a failed
save and half that on a successful one. Once the
ward is shattered it cannot be replenished before
you finish a lon