How it works
Prerequisites
- Necrotic Ooze does not have summoning sickness.
Steps
- 1Activate Necrotic Ooze using Bloodline Keeper's first ability by tapping it, creating a 2/2 Vampire creature token.
- 2Activate Necrotic Ooze using Grimgrin's ability by sacrificing the Vampire, untapping Necrotic Ooze and putting a +1/+1 counter on it.
- 3Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?