A pair of adventurers, locked in a duel

You watch with intense curiosity as two adventurers come to blows overhead. It's difficut to make out details from directly beneath, so you waddle back a few feet. One of them is a red-haired half-elf wielding a pair of daggers. You guess she's likely some sort of rogue, based on your experience as the receiving end of numerous knives in the past. Sparks fly as one of her blades scrapes against the edge of her foe's heater shield. That one looks clearly human. He wears a chain shirt and carries a shortsword in his right hand, and you surmise the poor sap must be a newbie.

"I can NOT believe you, Jake!" the half-elf shrieks, her eyes blazing with fury. She rains down a flurry of slashes and stabs at the human, who can barely deflect her attacks. One finally makes purchase, burying into his right shoulder. You give a soft chitter of excitement at the adventurer's suffering. There, now HE knows how it feels!

"Becca, please! I said I was sorry!" he grits his teeth, shambling back towards the cliff edge. A loose pebble slips free from beneath his heel before plinking off the rocky below. This plants an idea in your fungal brain. You waddle back to the base of the cliff and sidestep. The trap was set.

"She's my sister, Jake! How could you do this to me?!" Another clang of steel echoes out, and you hear Jake grunt as another blade plunges into his under-leveled character.

"Gah!-- Did you bring me out here just for ****?!"

"You fucked my sister, asshole! Consider the engagement off!" she hisses and you hear the telltale sound of a boot connecting with chains.

Jake lets out a yelp... and crashes into a broken heap beside you. This was it! Your red cap inflates. Jake gives you a silent look of resignation, and you exhale your purple cloud of toxic spores. Immediately he's seized by a coughing fit.

"I never want to see you again, jerk! I'll find my way out of these caves myself." Her steps fade, but you keep on pumping out spores until the veins in Jake's face darken.

You plug up your cap and feel a rush of energy and light consume you. You did it! You actually killed something! A menu suddenly appears in your mind, and you realize you have a choice to make:

SPORE HIVE - You lose your physical form, becoming a living cloud of spores. In this form you gain the ability to fly (about as slowly as your former walking speed) and to communicate telepathically with any creature that has inhaled your spores. As you gain more levels, the radius of your spores increases. If a creature fails a Will save against your spores, that creature becomes charmed by you and follows your commands as long as those commands do not bring the creature obvious, immediate harm.

FUNGAL BRUTE - Your physical form grows to the size and strength of a typical orc, but your arms and legs are replaced by four thick tentacles that wreathe the base of your large, red-capped head, like a mushroom octopus. This grants you increased mobility, allowing you to keep pace with most humanoids.