The cost is much too high imo. Consider the following:
Save 1 perm:
14 quanta, 1 discard
Save 2 perm:
19 quanta, 2 discard (9.5/1 each)
Save 3 perm:
24 quanta, 3 discard. (8/1 each)
Save 4 perm:
29 quanta, 4 discard (7.25/1 each)
Even at 4 permanents (which is usually greater than or equal to the amount of PC used against you in a single game) you're paying 7.25 quanta + a discard to save each one. This is an extremely high cost, especially when considering the opportunity cost of a discard AND when comparing it to graviton salvager (which is already a UP card imo). Thus, this card is extremely UP imo.