I love to use it for change weapons, for example.
Weapon instance have the variable called by "type" and it's set to be text. Also, you can make other variables like "damage" for each different damage you want, or simple increase it like you did for the weapon.
Inside the animations, I did them calling each one as weaponN, where the N is a ordinal number.
When the player change his weapon, for example, of the 1 to the 2, I just set it looping:
|Keyboard - "A" pressed:
|__set weapon.variable.type add +1;
|weapon - variable.type > 10:
|__weapon.variable.type = 1;
|system - every tick:
|__set weapon.animation to "weapon" & weapon.variable.type;
|__set weapon.variable.damage to weapon.variable.type;