Prerequisites
- Kiki-Jiki, Mirror Breaker on the battlefield
- Dack's Duplicate on the battlefield
Steps
- Activate Kiki-Jiki by tapping it, creating a token copy of Dack's Duplicate that has haste
- Choose to have Dack's Duplicate enter as a copy of Kiki-Jiki
- Put the oldest Kiki-Jiki into the graveyard due to the legend rule
- Repeat step 1 using the Dack's Duplicate token instead
Results
Required Cards 2

Kiki-Jiki, Mirror Breaker
Legendary Creature — Goblin Shaman

Dack's Duplicate
Creature — Shapeshifter