Those are nice:
Nav Buoy - here I would erase part If another player attempts(...) (...)control of the Battle Phase yourself.
And also add text that first Nav boy must be attached to capital ship and deliver to battle zone ( small difficulty but needed because of main ability or Buoy)
Surgical Strike - cheap (about 2 CP) nice order, good for Vasudans.
Interdimensional Subspace Jump- great for Shivans as counter card.
Isis Repair - nothing to change