Board Thread:Questions and Answers/@comment-35325345-20180507104216/@comment-26042064-20180508043933

I don't think XP is affected by treasures.

it should be pretty much the same cost for

rares, super rares and uber rares for leveling.

if correct every 10 levels will cost almost the same except the levels 11-20 will cost 2x and 21-30 will cost 3x the base cost.

I think a difference for some units like Metal Cat is there.