Mitigate
Source
Character Operations Manual pg. 50
You can control how you are affected by damage or effects that alter damage. As a reaction when you take damage, you can spend 1 Entropy Point to reduce the damage you take by an amount equal to your vanguard level (to a minimum of 0 damage). If you do, you can’t gain any Entropy Points from that attack.
Additionally, as a swift action, you can remove any DR or energy resistance you have, or the AC benefit of any ability or spell that increases your AC. If the effect granting DR or energy resistance has a duration, this ends the effect entirely for you. If you end an AC benefit, that AC benefit is ended for the duration of the effect. If the ability does not normally have a duration, you suspend the listed benefits until the beginning of your next turn. Additionally, whenever you first come under the effect of an ability or spell that grants you DR, energy resistance, or a bonus to AC, you can waive that benefit of the effect.
ID
c1415ca501d6e4059d206bfa