You experiment and alter your companion further. Whenever you create a Reanimated Companion, the companion now gains two options for Strange Modifications, instead of one. Additionally, when picking options for Strange Modifications, you can also choose from the following options.
Bloated
The companion becomes Large. Whenever it hits a Large or smaller creature with its Dreadful Swipe action, that creature is pushed up to 10 feet away from the companion. Additionally, you can add your Intelligence modifier to the damage dealt by the companion's Death Burst.
Gaunt
The companion's Speed increases to 45 feet, and it gains a Climb Speed equal to its Speed. It can climb difficult surfaces, including along ceilings, without needing to make an ability check. In addition, whenever a creature of your choice starts its turn within a 10-foot Emanation originating from your companion, the creature must succeed on a Wisdom saving throw against your spell save DC or have the Frightened condition until the start of its next turn.
Moist
The companion gains a Swim Speed equal to its Speed, and it can move through a space as narrow as 1 inch without expending extra movement to do so. In addition, whenever the companion is hit by an attack roll from a creature within 10 feet of itself, the attacker takes Acid damage equal to your Intelligence modifier.