Griffin Canyon, Sylvan Awakening, and Xenograft

Prerequisites

• Griffin Canyon on the battlefield
• Sylvan Awakening in hand
• Xenograft on the battlefield
• "Griffin" chosen with Xenograft
• available

Steps

1. Cast Sylvan Awakening by paying , causing all lands you control to become 2/2 Elemntal creatures with haste until end of turn
2. Activate Griffin Canyon's second ability by tapping it, untapping itself and giving it +1/+1 until end of turn
3. Repeat step 2

Results

• Infinitely large Griffin Canyon until end of turn