3.5e Weaves

Weaves have a number of special rules regarding their durations. Some weaves are simply instantaneous, and so perform much like spells with that property. However, many weaves can be Sustained and/or Tied Off. A weave that can be Sustained or Tied Off has a default duration of 1 round: by performing its Sustain action (if it has one), one can increase its duration; or by performing its Tie Off action, one can make its duration permanent. While a Sustain action can be performed at any distance, a Tie Off action can only be performed on weaves that remain within range (so a Close range weave can only be Tied Off while within Close range, a Medium range weave can only be Tied Off while within Medium range, and so on).