Restores
20% of damage received after enemy attack is over (up to
20% of own Health).
Also applies the following effects to self if own remaining health is
50% or below (activates once):
+20% to damage inflicted (cannot be cancelled).
Reduces damage received by
20% (cannot be cancelled).
Reduces damage received by
30% until combo ends when changing cover.
+20% to damage inflicted for 20 timer counts when activated.