Tazri, Stalwart Survivor, Hateflayer, and Biomancer's Familiar

Prerequisites

• Tazri, Stalwart Survivor on the battlefield
• Hateflayer on the battlefield
• Biomancer's Familiar on the battlefield
• Hateflayer does not have summoning sickness

Steps

1. Activate Hateflayer by tapping it, adding that can only be spent to activate abilities
2. Activate Hateflayer by paying and untapping it, dealing damage equal to its power to any target
3. Repeat

Results

• Infinite damage