How it works
Prerequisites
- You have a way to cause a creature to enter the battlefield under your control.
Steps
- 1Cause a creature to enter the battlefield under your control.
- 2Elrond triggers, causing you to scry 1.
- 3Arwen Undómiel triggers, putting a +1/+1 counter on Herd Baloth.
- 4Herd Baloth triggers, creating a 4/4 Beast creature token.
- 5Repeat from step 2.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?