Burrowing Root Horror

Burrow Ambusher. While burrowing underground it has advantage on attack rolls made against creatures touching the grounds when its emerges.

Root Network Awareness. the borrowing Root Horror can sense vibrations through the corrupted roots system. It automatically detects creatures touching the ground with in 60 feet

Exposed Core. When the Burrowing Root Horror uses Root Eruption, its glowing corruption core is exposed until the start of the next turn. Attack rolls made against it have advantage during this time.

Multiattack 

Root slam. Melee Weapon Attack: +4 to hit, reach 10 ft.,1 target. Hit: 13(2d8 + 4) [bludgeoning] damage.

if the target is large or smaller, it must succeed on a dc 15 strength saving throw or become grappled.

Root Eruption ( Recharge 5-6). The Burrowing Root Horror  violently erupts from the ground. creatures within 15 ft must make a dc 15 dex saving throw. Failure: 18(4d8) bludgeoning damage and knocked prone. Success: Half damage no prone.

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