Rule · Chapter 1
cr:1.4.3
An attack-proxy is a non-card object with the attack ability[8.3.1] that represents the attack of another object (attack-source).
Example: Bone Basher has the text, “Once per Turn Action – {r}{r}: Attack” which is an activated ability that creates an attack-proxy. The attack-proxy is a representation of Bone Basher’s attack.