Deface-Book Troll

As part of the use of material and somatic components of the spell, you must deface the spellbook by crudely tracing crude drawings or rude language on the cover. Your writing becomes burned into the book, dispelling all of its magic, and rendering the book totally unusable and worthless. The act of casting this spell is in itself malicious, and therefore the spellbook must contain spells and must have been used at least once before.

When you cast this spell, you summon a Troll that appears in an unoccupied space that you can see within range. The Troll summoned by this spell disappears and is destroyed when the spell ends, regardless of the Troll's current hit points.

The summoned Troll is friendly to you and any creatures of your choosing. Do not roll initiative for the summoned Troll. It will automatically go last in Initiative order. You have a psychic link to the Troll you summoned, and may control it completely on its turn.

The Troll has the characteristics and statistics of a Troll as listed in the Monster Manual, but with 3 changes.

First, the Regeneration ability happens at the beginning of the Troll's turn, regardless of whether it took Fire or Acid damage.

Second, the Troll may take 1 Legendary Action per round, at the end of another player's turn. This Legendary Action will be as follows:

Trolling: The Troll unleashes a string of verbal insults, threats, and/or taunts to a creature of your choice. When using this Legendary Action, the Troll may speak in any language known to the target creature. The Troll knows everything that you know about the target creature (secrets, shames, insecurities, etc.)  This Legendary Action does not deal any damage or cause any condition, and just serves to bait the target creature into engaging.

Third, the spell ends early if at the beginning of the Troll's turn, no creature has made any hostile engagement, either verbal (insults, taunts, threats, etc.) or physical (targeted it with an attack, targeted the it with a damage-dealing spell, or otherwise made any action with the intention to cause damage to the Troll), since the end of the Troll's previous turn. 

**DO NOT FEED THE TROLL**