Prerequisites
- Experiment Kraj on the battlefield
- Gilder Bairn on the battlefield
- Marwyn, the Nurturer on the battlefield
Steps
- Activate Experiment Kraj using Marwyn's ability by tapping it, adding at least
Activate Experiment Kraj using Gilder Bairn's ability by paying 
and untapping it, doubling each counter on target permanent - Repeat
Results
Required Cards 3
Experiment Kraj
Legendary Creature — Ooze Mutant
Gilder Bairn
Creature — Ouphe
Marwyn, the Nurturer
Legendary Creature — Elf Druid
