Can you climb to top 20 these days without spending crystals?

"Kyno;c-2096154" wrote:
I set myself a budget of 150 crystals for both arenas. some days I use it, but usually only 100, others I dont spend any. Lately those days are lower, too many active in my fleet so need a 50 to make the whole climb.

arena, is more rare to spend the 50, but it still happens.