Bind Demon
Warlock · Demon
Force an injured demon to do your bidding
Required level30
Maximum level20
Base mana cost50
PREREQUISITES
UNDOCUMENTED MECHANICS
At skill level 5 the minion gains the monster modifier “Extra Strong”.
At skill level 10 the minion gains the monster modifier “Extra Fast”.
At skill level 15 the minion gains the monster modifier “Spectral Hit”.
At skill level 20 the minion gains the monster modifier “Aura Enchanted”.
Up to 1 at once.
None of this is in the game's description; it all lives in the MonPet table, and there are four gates:
1. The monster must already be hurt. Above its life threshold the chance is not merely low, it is exactly zero. The threshold is fixed per monster type: most are 85%, but there are 99%, 80%, 75%, 65%, 60%, 50%, 45% and 40% ones — the toughest have to be taken to four tenths of their life first.
2. A quality gate. Normal monsters have none; champions need this skill at level 10 or higher; uniques and their minions need 15. Below that it can never land, no matter how much chance you stack.
3. How the chance is built. It is this skill's own chance plus the level of Death Mark plus a bonus from missing life, where the missing-life term is divided by 5 for normal monsters, 10 for champions and 20 for uniques and minions. So the lower its life the better, and Death Mark feeds this skill directly — a synergy the game never mentions.
4. It only rolls once every 12 frames, not every frame.
Once bound, the monster's maximum life is capped at 13,200, raised by 660 for each additional player in the game.
"Chance to Bind" above follows a diminishing curve, not a flat gain per level; the other numbers in the same block do not. The curve only tops out at skill level 60, gear bonuses included, so the first few points are worth far more than the last ones.