Akroan Conscriptor, Leyline Immersion, and Elvish Fury

Prerequisites

• Akroan Conscriptor on the battlefield
• Leyline Immersion on the battlefield
• Elvish Fury in hand
• Leyline Immersion attached to a legendary creature you control without summoning sickness

Steps

1. Activate the creature with Leyline Immersion attached by tapping it, adding that can only be spent to cast spells
2. Cast Elvish Fury with buyback by paying , targeting Akroan Conscriptor
3. Akroan Conscriptor triggers, causing you to untap the creature with Leyline Immersion attached
4. Resolve Elvish Fury, giving Akroan Conscriptor +2/+2 until end of turn and returning Elvish Fury to your hand
5. Repeat

Results

• Infinitely large Akroan Conscriptor until end of turn
• Infinite magecraft triggers
• Infinite storm count