The crystalline bonds deal 3d6 points of damage when they first entwine and pierce the target's flesh, and 1d6 points of piercing damage every round thereafter as they continue to writhe and burrow, tightening their grasp.
A target caught by the bonds can attempt purely mental actions, such as manifesting a power. However, the burrowing nature of the bonds requires that a manifester make a Concentration check for each power attempted with a DC of 20 + half the continuous damage last dealt. (The continuous damage is that damage dealt in each round after the initial round of the effect.)
The target can break loose by spending 1 round and making a DC 20 Strength check or a DC 25 Escape Artist check. Alternatively, cutting or damaging the bons can free a victim. The crystal has AC 5, hardness 12, and 30 hit points.
You can augment this power in one or more of the following ways.
- For every 2 additional power points you spend, this power's save DC and the DCs to break loose increase by 1.
- For every 2 additional power points you spend, this power can affect a target of one size category larger.
- For every 2 additional power points you spend, the continuous damage increases by 1d6 points