Ruby, Daring Tracker, Bard Class, Temur Sabertooth, and Biomancer's Familiar

Prerequisites

• Ruby, Daring Tracker in hand or in the command zone
• Bard Class on the battlefield
• Temur Sabertooth on the battlefield
• Biomancer's Familiar on the battlefield

Steps

1. Cast Ruby either from your hand or from the command zone by paying due to Bard Class plus commander tax, if applicable
2. Activate Ruby by tapping it, adding
3. Activate Temur Sabertooth by paying , returning Ruby from the battlefield to your hand
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Exile your library with the ability to play the exiled cards until end of turn