What is the point of copy Doram skills if you cant use at his max power, Magic Doram Skills have a huge Fixed cast time without Doram set or a Fenrir Card you cant enjoy (the only way to Enjoy Catnip Meteor is if you can use with Shadow Spell, sadly there arent any info yet about a SC trying this so...) and Physical ones you cant have that huge damage from Picky Peck since worms accessorys cant equipp in SC and SC dont have any strong weapon with 400 ATK+, the only useful skill you maybe can copy and use for certain enemys and instances is Scar of Tarou.
It's not just about damage that is useful on doram skills. It is how you use your SC w/ doram skills.