Streets of New Capenna

Scuttling Butler | Artifact Creature | Construct | At the beginning of combat on your turn, if you control two or more multicolored permanents, Scuttling Butler gains double strike until end of turn. | Gaboleps

Cement Shoes | Artifact | Equipment | Equipped creature gets +3/+3 and has "At the beginning of your end step, tap this creature." Equipped creature doesn't untap during its controller's untap step. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | Mark Behm

Brass Knuckles | Artifact | Equipment | When you cast this spell, copy it. (The copy becomes a token.) Equipped creature has double strike as long as two or more Equipment are attached to it. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) | Yeong-Hao Han

Arc Spitter | Artifact | Equipment | Equipped creature has "{1}: This creature deals 1 damage to target creature that's blocking it." Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) | Matt Forsyth

Suspicious Bookcase | Artifact Creature | Wall | Defender {3}, {T}: Target creature can't be blocked this turn. | Josu Hernaiz