Lullmage Mentor + Anointed Procession + Doubling Season + Exalted Sunborn

Lullmage Mentor

Anointed Procession

Doubling Season

Exalted Sunborn

How it works

1. Whenever an opponent casts a spell, activate Lullmage Mentor by tapping seven untapped Merfolk, countering that spell.
2. Lullmage Mentor triggers, creating a total of eight 1/1 Merfolk creature tokens.
3. Repeat.

This lock relies on Lullmage Mentor to systematically counter every spell your opponents cast by tapping down seven Merfolk, which in turn triggers its ability to create a fresh Merfolk token. Because your token-doubling stack featuring Anointed Procession, Doubling Season, and Exalted Sunborn all apply replacement effects to that single generated token, the initial creation is multiplied exponentially—turning a single trigger into a massive surplus of eight brand-new 1/1 Merfolk creature tokens. With those newly spawned bodies immediately ready to fuel the next activation, you comfortably bypass the tap requirement to continuously counter everything your opponents try to do while flooding the board with an endless army.