Discard 3 cards: Put a Great Testimony token into your EX area.
Banish a Mjerrabaine, Omen of One from your cemetery: Deal 2 damage to each enemy leader. Draw 2 cards. Activate only once per turn.
Great Testimony (Spell - Omen) | Select an enemy follower on the field. Destroy it and, if there's a Mjerrabaine, Great One on your field, deal 2 damage to its leader.