You become liquid metal and move to the other side of your attacker, striking it before it has time to discover your whereabouts.

Encounter   ✦     Polymorph, Weapon
Immediate Interrupt      Melee weapon

Trigger: An enemy makes a melee attack against you

Effect: You shift 3 squares to a square adjacent to the triggering enemy.

Attack: Dexterity vs. AC

Hit: 2[W] + Dexterity modifier damage.

Published in Dragon Magazine 385, page(s) 7.