Borrowed Time

This spell does not prevent injury, rather it allows the caster to postpone their injuries until a later time effectively making them temporarily invulnerable.

For the duration of the spell, you are immune to all damage. Keep a running total of all damage which has been postponed by the spell throughout its duration. Since you are not technically taking damage, concentration checks don't initially apply; However shunting the injuries forward in time is mentally taxing so when the total damage you have postponed reaches 50 points or more and for all damage postponed thereafter you must make a concentration check as if you had taken that instance of damage. When the spell ends the sum total of all of the damage postponed is instantly applied to you.  The spell ends after a duration of 10 minutes, when you break concentration or when dispelled.

The temporal effects of this spell interfere with the Death Ward spell. Casting this spell on yourself dispels Death Ward and Death Ward cannot be cast upon you whilst this spell is in effect.

At Higher Levels. When cast at 6th level the spell duration increases to 1 hour and you are granted a +2 bonus to concentration checks. When cast at 7th level the spell duration increases to 10 hours and you are granted a +5 bonus to concentration checks.