Played a Octilliary this weekend with Chancey. I actually used the Boost on the First attack that help ko a Magmotar. It is first attack was only CC (2 colorless), but turned the game just the same.
CC 30, Does additonal 30 if special energy attached, discard the special energy. or something like that.)
Again I ran a BLissey/ Holon WP based deck the Octilliary was just to get at Bench, the boostable first attack isn't really abusing the boost nrg.