I still have quite a few backpacks, but I don’t think I have anything in short supply? Don't know if it's worth it. It’s too troublesome to get backpack rewards at the border. It took me so long to give away some useless ones.
Guardian of the blue sky
The flight backpack is not as useful as the movement backpack. The movement backpack is useful in most maps, but the flight backpack is only useful in individual maps.
Whispers of time
The back backpack will seriously overflow. Unless you don’t care about having a lot of krypton, there is no need to buy it.
Whispering in the wind
No need to buy it. You will have a lot of backpacks later.
The waiting of time
I unlocked the movement speed backpack. If you kill a monster, you can run five blocks away. When you hit the border, it will give you a purple and blue backpack, and then you can synthesize an orange backpack. Basically three weeks and two orange backpacks
waking up from dream
If you have more rice, buy it