Mist from
target, duration, and cost the same
Effect the same take 75% less damage from all sources (perhaps even fall damage) and gain invulnerability to healing magic and control effects for 3 secs (same)
has the same new visual animation red slickly things instead of the red light effect. Looks cool.

then when it comes to morphing it
Poison mist has the same new effect cost target and duration with take 75% less damage from all sources (perhaps even fall damage) and gain invulnerability to healing magic and control effects for 4 secs (same)
has the same new visual animation.

then when it comes to Elusive mist morph which has higher cost from last update and lowered speed from 45% to 30% should now have a bonus effect Invisibility animation. That way all the handwork put into the new animations are still there and Elusive mist form has the invisibility animation perhaps change the name to something like elusive form instead of mist. that way everyone is happy.