Welcome Kanna to Maple World with Hot Day 2!

His min/max critical damage boosts would be more informative on the necessity of %crit than his current rate. Without min/max crit boosts, the increased damage from 5% crit chance would be equal for any class.

which is important, because of Hayato's innate high critical damage.

o.o

It's also very important, because the healing ability Hayato has is based on critical hits. It's a 30% chance to heal 3% HP when you hit a critical. The less critical rate you have, the less chance you have to heal, which is pretty important for Hayato's survivability.