Konami very aggressively suggesting that maybe you should run Equip Spells if you know what’s good for you.
RD/KP11-JP051 炎装フレットベルジュ Ensou Fretberge (Flame Arms Fretberge)
Equip Spell Card
[REQUIREMENT] You can equip this to a face-up monster you control whose original Type is Psychic.
[EFFECT] The equipped monster gains 400 ATK. While the equipped monster is face-up on your field, monsters your opponent control cannot attack monsters, except monsters equipped with an Equip Spell Card.
Note: A fret is any of the thin strips of material, usually metal wire, inserted laterally at specific positions along the neck or fretboard of a stringed instrument. Frets usually extend across the full width of the neck.
RD/KP11-JP053 聖装ストラビショップ Seisou Strabishop (Sacred Arms Strabishop)
Equip Spell Card
[REQUIREMENT] You can equip this to 1 face-up Psychic monster you control.
[EFFECT] The equipped monster gains 100 ATK and 1500 DEF, also that monster cannot be destroyed by the effects of your opponent’s Trap Cards.
Note: It’s referring to a guiter strap.