I tried it 5 times and realized that even if I clear the ice and collect all green and blue diamonds, there's no way to collect 16 attacks in 24 moves. IF I use buddys that need 9 diamonds to power up, I'll have to collect at least 6 diamonds in each move. And I need those that take out arrows, wich requires 14 yellow and purple diamonds. I really have no idea how to finish this level.
I really like this game but it's never fun to play something that feels impossible.