The Founding Titan

Vigilance, Reach, Trample

When The Founding Titan enters the battlefield, sacrifice all wall tokens you control. Then for each wall token sacrificed this way, create a 5/5 red Titan creature token named Wall Titan with vigilance, trample, haste, and annihilator 1.

When The Founding Titan leaves the battlefield, tap all token creatures you control. They don’t untap during your next untap step.