Talk:Da Vinci and The 7 Counterfeit Heroic Spirits/@comment-11658422-20160411064258/@comment-27107874-20160411084630

If you're leveling up a 5 star servant's skill you'll have to pay 10,12 and 20 million respectively for the last three stages (compared to 5,6 & 10 for 4 stars). Meaning even your 56 will run out at in instant. I was at close to zero during the kara no kyoukai event so yes it does happen, if you're earnestly leveling up skills from your highlevel servants.