I feel like Accelerate Healing needs a buff, it feels very weak as it is, I would say increase either the length of the effect, or increase the Healing Factor (Not the Immunity Gain though)

I also have 2 additional psycast ability I feel would work well, They are:
Healing Pulse: (Rank 2 OR 3 psycast). Greatly amplifies healing. However this ends up causing excruciating pain to the recipient, to the point it will likely cause the recipient to black out for the duration of the psychic effect (Healing Factor: +500% or more, Pain: +75% to +90%, Lasts for 15s - 25s)
Psychic Shockwave: (Rank 6 psycast, yes its a very powerful one!) All the users rage, anger, hatred and fear is channeled into an overwhelming psychic blast that can be felt physically in the form of a powerful psychic explosion. However, doing this overloads the psychic amplifier, causing a short but potent wave of pain as the amplifier repairs itself. (Two parts to this one, Part 1: An explosion of a range of 5 - 8 tiles with a rather high damage value. Part 2: A health debuff that causes, Pain +100%, Movement, Manipulation, Sight, Hearing -25%, Lasts for 10s - 20s)

All the ranges are up to you to decide on, and all of the values are just ideas, feel free to change them to what you think is fitting!

Feel free to add your own as well!