Abilities 5 of Human

You either regain your Initiative or perform another ability instantly. When used in this way, you say "Haste" in place of a single nine-syllable or three-count Trigger, such as those required for Dust, Medicine, Poison, Sign, Spell, Spoken, or Supply abilities. The hastened ability becomes uninterruptible, but you must still be able to perform it normally (a Muted character cannot speak an incantation or phrase even if it's hastened, a character without a free free hand cannot draw a sign or use supplies). Haste can also be used to counter or end a Slow effect.