Destroy Undead

At 5th level, when an undead fails its saving roll against your Turn Undead feature, the creature is instantly destroyed if its challenge rating is at or
below a certain threshold.
• 5th — 1/2 or lower
• 8th — 1 or lower
• 11th — 2 or lower
{bull} 14th {line} 3 or lower
{bull} 17th {line} 4 or lower