Whenever you apply a boon to another creature, also gain its effect. You can only gain the effects of a multi-target boon one time per application due to this effect.
Pattern of Quickening (major, 0)
The Weave accelerates the actions of a creature you can see, hastening their movements as time itself distorts around them. For the duration of this effect, they may take an additional major action on each of their turns. They cannot spend essence as part of this extra action.
Most obvious patch here is to restrict pattern of quickening to not allow essence or self-casting. I realize there's a similar exploit with two weavers who cast this on each other.
Infinite turn engine!
Magnanimous
Pattern of Quickening (major, 0)