More than worth it if you manage to poison him and make him think twice before playing his cards. After that you may leave in the board any spirits that come into play in a similar way.
>Dune Scorpion 0|1
>Lingering Spirit Bless
>Dune Scorpion 3|4
>lightning
>wasted Dune Scorpion
>wasted Lingering Spirit
>wasted Blessing
>1 poison damage
>fml
>Flying Titan with tons of SoW
>Freeze + Shockwave
>wasted flying weapon, titan, and tons of SoW