Grove of the Burnwillows + Pili-Pala + Marvin, Murderous Mimic + Tainted Remedy + Jolrael, Empress of Beasts

Grove of the Burnwillows

Pili-Pala

Marvin, Murderous Mimic

Tainted Remedy

Jolrael, Empress of Beasts

How it works

1. Animate Grove of the Burnwillows using Jolrael
2. Activate Marvin using Grove of the Burnwillows' second ability by tapping it, adding or and causing each opponent to lose 1 life due to Tainted Remedy.
3. Activate Marvin using Pili-Pala's ability by paying 2 and untapping it, adding 1.
4. Repeat from step 2.