I used the teleport as many times as I could - and had loads of money and just spammed the 'repair' button, but it wasn't enough! Great game, though! One very small bug I found - I was down to 3 health, then wondered what the envelope icon was in the bottom left. Clicked it and it said to repair the castle, but it changed the repair icon to a heart and you can't then click it. So you have to wait to get damaged once more, then you get the repair icon back.