Earthcraft, Lifespark Spellbomb, and Wake Thrasher

Prerequisites

• Earthcraft on the battlefield
• Lifespark Spellbomb on the battlefield
• Wake Thrasher on the battlefield
• An untapped basic land
• and available

Steps

1. Pay and sacrifice Lifespark Spellbomb, targeting the basic land
2. Tap the basic land with Earthcraft, untapping itself
3. Wake Thrasher triggers getting +1/+1 until end of turn
4. Repeat

Results

• Infinitely large Wake Thrasher until end of turn