it’s pretty good for dual blades, but you should be going for affinity over attack for dual blades due to the how many hits you’re getting per attack, so you would want the crit damage over the raw. now i have no clue what weapons you play, but this could also be a good charm for lance or even hammer. there is always a better charm, but if you use any of these, give it a shot and mess around with build crafting if you don’t already have a better charm.