Garth One-Eye + Necrotic Ooze + Krosan Archer + Devoted Druid

Garth One-Eye

Necrotic Ooze

Krosan Archer

Devoted Druid

How it works

1. Activate Necrotic Ooze using Garth One-Eye's ability by tapping it, causing you to pay 0 to cast a copy of Black Lotus.
2. Activate Black Lotus by tapping and sacrificing it, adding .
3. Activate Necrotic Ooze using Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
4. Activate Necrotic Ooze using Garth One-Eye's ability by tapping it, causing you to pay 1 to cast a copy of Regrowth.
5. Resolve Regrowth, returning Garth One-Eye to your hand from your graveyard.
6. Activate Necrotic Ooze using Krosan Archer's ability by paying and discarding Garth One-Eye, giving Necrotic Ooze +0/+2 until end of turn.
7. Activate Necrotic Ooze using Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
8. Repeat.