How many targets does Convergent Mutation choose?

Ruling: Convergent Mutation has two targets - the unit you want to change the might of and the unit you take the might from.

Nuances:

• The card text may be unclear because it uses "choose" for the first friendly unit but not for the second
• According to the latest CRD update targeting rules (section 352.5), this card targets 2 friendly units
• Some cards say "choose" but don't target because they make choices on resolution, while others don't say "choose" yet still target