Zaxara, the Exemplary + Pemmin's Aura

Prerequisites

Pemmin's Aura attached to Zaxara. Zaxara does not have summoning sickness.

Steps

1. Activate Zaxara by tapping it, adding {U}{U}.
2. Activate Pemmin's Aura's first ability by paying {U}, untapping Zaxara.
3. Repeat.