Bloodflow Connoisseur + Cayth, Famed Mechanist + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

WUBR identity

Commander legal

The 3 combo pieces

• Bloodflow Connoisseur
• Cayth, Famed Mechanist
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

How to execute it

1. Activate Bloodflow Connoisseur by sacrificing Cayth.
2. When Cayth dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Cayth enters, its fabricate ability triggers, putting a +1/+1 counter on it.
4. Resolve the Bloodflow Connoisseur ability.
5. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers