Necrotic Ooze, Pili-Pala, and Omen Hawker

Prerequisites

• Necrotic Ooze on the battlefield
• Pili-Pala in the graveyard
• Omen Hawker in the graveyard
• Necrotic Ooze does not have summoning sickness

Steps

1. Activate Necrotic Ooze using Omen Hawker's ability by tapping it, adding that can only be spent to activate abilities
2. Activate Necrotic Ooze using Pili-Pala's ability by paying and untapping it, adding one mana of any color
3. Repeat

Results

• Infinite colored mana
• Infinite colorless mana that can only be spent to activate abilities