With these attack buff changes, now healer doesn't even have to do top gear, cause 5% difference or so makes no difference.
Btw. why did you change it now, for what reason? What was the problem with previous attack buff?
Amplified Attack was providing exponential benefit for weaker equipments when it was raw value, now it will be equally scaling with regardless of power level of the equipment and not close the gap between weak and strong equipment.
Previously 600k attack buff was providing 30% attack to 2.000.000 attack (excluding other % attack boosts), while it was providing 33.3% to 1.800.000 attack, which is now 30% too.
From 500.000 to 600.000 attack is 20% increment in benefit, which is now 25% to 30%, so still 20% increment in benefit, nothing is changed for scaling in terms of equipment upgrade.
Greetings.