Intangible Tango

When Intangible Tango enters the battlefield, up
to two target creatures you control form a plan.
(They become attached to this Strategy.)
Whenever a creature who formed this plan
becomes the target of a spell or ability, exile it,
then return it to the battlefield attached to this strategy.
Employ {2}{u}{u} (Attach an additional creature you
control. They become unattached to other Strategies.)