From DivNull RPG
A wood-aspected Casket of Firedust Conversion inlaid with green jade in patterns of vines and leaves that turns firedust into briardust.
A firewand with briardust in it fires a seed that rapidly opens and begins to put out vines. If the target fails to dodge, she is immediately entangled in vines. She may immediately make one Strength or Dexterity + Martial Arts or Brawl roll, difficulty 5, to attempt to disentangle herself from the vines. (Mobility Penalty, from armour, applies to this roll, even if it is made with Strength.) If she fails the roll, she is entangled and can take no actions until she disentangles herself. Every round, on her initiative, she may make one more Strength / Dexterity + Martial Arts / Brawl roll and add the successes to her previous successes on the roll. She is not free from the vines, and can take no actions, until she has accumulated 5 successes, total.
The vines are extremely strong, having an effective Strength of 5 and an effective Brawl of 5. If the target fails to dodge, they immediately grasp her in a clinch. The target may attempt to escape the clinch every round on her initiative, as normal; the vines do their clinch damage at the end of every round and do not take damage from the clinch. An ally may cut the target from the vines; they need make no roll as long as they have a sharp weapon, but must take a full round to do so.