Prerequisites
- Barrenton Medic in your graveyard
- Boa Constrictor in your graveyard
- Necrotic Ooze on the battlefield
- Necrotic Ooze does not have summoning sickness
- It is your precombat main phase
Steps
- Activate Necrotic Ooze using Boa Constrictor's ability by tapping it, giving it +3/+3 until end of turn
- Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it
- Repeat
Results
Required Cards 3
Barrenton Medic
Creature — Kithkin Cleric
Boa Constrictor
Creature — Snake
Necrotic Ooze
Creature — Ooze