Changeling Berserker | Dual Nature

Cards

Cast
Changeling Berserker by paying ({3} magic symbol) ({R} magic symbol) .
When
Changeling Berserker enters the battlefield, its champion ability and
Dual Nature's first ability trigger.
Resolve the
Dual Nature trigger, creating a token copy of
Changeling Berserker.
When the
Changeling Berserker token enters the battlefield, its champion ability triggers, exiling the nontoken
Changeling Berserker.
Dual Nature's second ability triggers, exiling the
Changeling Berserker token.
When the
Changeling Berserker token leaves the battlefield, the nontoken
Changeling Berserker is returned to the battlefield from exile.
Repeat from step 2.
If you control additional creatures you wish to blink, you may resolve the
Changeling Berserker trigger in step 2 to exile them, and then proceed with the combo.