Ith, High Arcanist, and Wake Thrasher

Prerequisites

• Ith, High Arcanist on the battlefield
• Wake Thrasher on the battlefield
• Ith does not have summoning sickness

Steps

1. Declare Ith as an attacker
2. Activate Ith by tapping it, untapping Ith and preventing all combat damage that would be dealt to or dealt by it this turn
3. Wake Thrasher triggers, giving itself +1/+1 until end of turn
4. Repeat from step 2

Results

• Infinitely large Wake Thrasher until end of turn