Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Bloodflow Connoisseur + Relentless Skaabs

Prerequisites

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Steps

1. 1Activate Bloodflow Connoisseur by sacrificing Relentless Skaabs
2. 2When Relentless Skaabs dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. 3Activate Bloodflow Connoisseur by sacrificing Relentless Skaabs
4. 4When Relentless Skaabs dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. 5Resolve both Bloodflow Connoisseur abilities from step 1 and 3.
6. 6Repeat.

Effects

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