The hydra dagger is good on Nito and Summer Scathath and any other Instant-death NP.
Dragon’s Meridian is also useful for when you need 50% NP charge but party cost is the limiting factor for the gold versions that offer extra stats.
Sorcery Ore for the 20% NP gain.
Rin’s Pendant for the 20% crit.
Dragon Kin for the 20% NP strength.
Anchors aweigh for the 200 heal per turn. (Good with Spartacus.)
Spell Time for the 20% c star drop rate.
Azoth Blade for the 10% defence.
Clocktower for the 3% NP gauge charge per turn.
Mooncell for the Arts, Buster and Crit buffs.
The Cage for the 20% NP charge and 20% NP gain.
Fragarack for the C star gather rate.
Prince of Slayer for the Special Attack [Dragon].
Motored Curaiser for the Special Attack [Rider]
Mana Gauge for the Special Attack [Caster]
Repeat Magic for 20% NP charge and 10% NP gauge.
True Shot for the Sure hit and Crit. (Mainly used for the Sure hit whet dealing with evasion and Invulnerability spamming foes.)
Chaldea Beach Volleyball again for the Super hit and Crit as well as C. Star drop rate. (Once again, mainly used for the Sure hit whet dealing with evasion and Invulnerability spamming foes.)
Salon de Marie for the 1 time evade but with negligible bonus effects of HP recovery amount and Debuff success rate.
Black Keys (all colours for obvious reasons).