Marasmius rotula. The Collared Parachute.
You ate a bad mushroom and got worse than a bad trip. Your patron lives in your own skull, whispering in your ear and speaking through your mouth. You can't scrub it out no matter how hard you try.
Level 3
Earthen Rites.
Your parasite grants you knowledge of Mycelic Spells. Your shadow minions become tiny, nearly invisible, mycelic yeast minions +Your minions can be cast at a base range of 6, and increase +1 every 5 levels. +Enemies have disadvantage to hit your mycelic minions. +Whenever your minions would crit, you instead inflict one of the following conditions: Dazed, Frightened, or Charmed until the end of your next turn -You can summon 1/2 the normal amount of minions [LVL or INT, whichever is lower] / 2. -Your mycelic minions have 1/2 the normal range
Form of Mycelium.
(LVL/Safe Rest) (1 Action, or when dropped to 0 HP). Your form of mycelium transforms your physical body dramatically, but maintains your relative human size & shape +Gain [KEY]d8 + [LVL] temp HP until your form reverts +When you hit a creature with an attack, the target is frightened unless it succeeds a WIS saving roll (Your DC = 10+KEY) +You are immune to the frightened and charmed condition
Level 7
Dread Reaper Form.
Your form of mycelium transformation advances, causing your appearance to become more monstrous, and less human. Your parasite reforms your flesh and bone into a scything arm, increasing your damage. You keep the previous benefits, and gain the following: +Gain [KEY]d10 + [LVL] temp HP until your form reverts +Your physical attacks are now 3d4+KEY slashing. You can choose either slashing or necrotic damage when you attack a target. Your slashing damage attacks count as magical. +When you crit a (non-legendary) bloodied creature with an attack, or cause a creature to be bloodied with your attack, you instantly kill that creature
Level 11
Dread Knight Form.
Your form of mycelium transformation advances, causing your size to increase large. Your parasite reforms your flesh and bone into thick enameled plate armor. You keep previous benefits, and gain the following: +Gain [KEY]d12 + [LVL] x 2 temp HP until your form reverts +Gain +18 armor (bone half plate & shield) +When your temp HP is exhausted, and again when you reach 0 HP, your body erupts with withering spores. Each creature within 30 feet of you takes necrotic damage equal to 2d10 + LVL and become dazed. You are healed equal to the damage you roll, and cannot use this feature again until 1d4 safe rests.
Level 15
Avatar of Marasmus.
Your form of mycelium transformation advances, causing your size to increase to huge and to lose all sense of your humanity. Your parasite reforms your flesh and bone into a draconic beast. You keep the previous benefits, and gain the following: +Gain [KEY]d12 + [LVL] x 3 temp HP until your form reverts +Gain +25 armor (draconic hide) +Gain a fly speed equal to your speed +Your physical attacks are now 4d8+KEY slashing. You can choose either slashing or necrotic damage when you attack a target. Your slashing damage attacks count as magical. +Withering breath (3 Actions) (Reach: Cone 8) (DC 20 DEX save) - KEY d20 damage, half on save. If a creature took any damage from this attack, you may choose to inflict one of the following conditions: Dazed, Frightened, or Charmed until the end of your next turn. Creatures that critically fail their save are also Incapacitated.