Your companion is a ooze or another type of slime. Size Small Melee
pseudopod, Damage 1d6 acid Str +3, Dex +1, Con +4, Int -4, Wis -2, Cha -2 Hit Points 8 Skill Athletics Senses motion sense 40 feet, no vision Speed 30 feet Support Benefit Your ooze grabs the target preventing it from fully reacting to your strikes. Until the start of your next turn, your Strikes that damage creatures your ooze threatens give the flat-footed condition to the target until the end of your current turn (until the start of your next turn on a critical success) . Advanced Maneuver envelop
Requirements The animal companion’s last action was a successful pseudopod Strike.
The ooze grabs the target and the target takes acid damage equal to your level automatically until the target escapes the grab.
I think animals should give you a flank attract the attention of the enemies in 5e. Let’s make that happen!
You and your animal are a team. You hunt as one, and you fight as one. Gain the following benefits:
Increase one stat of your choice by 1 to a maximum of 20.
When your animal companion, familiar, or another creature under your control is engaged with an enemy, instead of using an action to attack, that creature can use an action to cause the target to grant advantage on your next attack roll against the target or cause the creature to have disadvantage on any attack or spell that does not target the animal companion, familiar, or other creature you control.
Druid without an animal companion?! Let’s fix that now!
Circle of the Beast
At level 2, gain an animal companion as per the Ranger Class rules (PHB p 93).
At level 6, gain the Share Spell class feature as per the Ranger Class rules (PHB p 93).
At level 10, you may impose disadvantage on one saving throw, ability check, or attack of an enemy your beast companion is engaged with.
At level 14, on a turn following a attack by your best companion, you gain advantage on the next attack roll or spell attack roll if you attack the same enemy that your best companion attacked last turn.