Armguard Familiar — Kamigawa: Neon Dynasty #46

Ward (Whenever this permanent becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Equipped creature gets +2/+1 and has ward .

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)