No need for HPs.
If you didnt know this, it really helps,but only if you like helicopters. You can save a helicopter just like when you save a car. Just land any part of the heli onto the parking spots infornt of any safe house, I suggest the one Roman buys after you unlock the middle island. Try to get tail over the other parking spot so another car can be parked and so a car wont hit the heil, and save. The heli will stay there unless you use it. This works great with the mission where you need to steal the heli with the drugs or paper in it. Or if you don't feel like going to the docks all the time, take the heli from there and save it.
Theres loads more info this game, right here, with some cheats and tips, answers and Magic: Duels of the Planeswalkers 2014 walkthrough.
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