Anna

Anna is a Premium Box Tsum.

Information
Anna is a Random Transformation Skill Tsum. In addition to transforming Tsums into Elsa Tsums, any chains created with the Elsa Tsum will also clear Tsums surrounding that chain. Her base number of Elsa Tsums created is 4~7. Although she creates Elsa Tsums, she does not count as a "Call a Friend" Tsum (possibly because Elsa is her sibling rather than a friend).

Strategy
Like Maleficent, it's best to try to get the longest chain possible of Elsa and Anna Tsums. Do not pop bubbles close to Elsa Tsums, because the Tsum will just be destroyed without clearing surrounding Tsums.