Elspeth, Storm Slayer + Exalted Sunborn + Lullmage Mentor + Primal Vigor

GWU identity

Commander legal

The 4 combo pieces

• Elspeth, Storm Slayer
• Exalted Sunborn
• Lullmage Mentor
• Primal Vigor

What must be in place

You control at least seven untapped Merfolk.

How to execute it

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.

What the combo produces

• Counter all spells opponents cast
• Lock
• Near-infinite ETB
• Near-infinite tapped creature tokens