something is wrong here:
http://pokemonshowdown.com/replay/ou6285545
either multiscale is not working correctly, or the damage outputted is not correct, assuming the output is correct, the following bugs happen:
turn 10 full damage is done with ice, but at Dragonite is at full health
turn 11 half damage is done with ice beam, Dragonite isn't at full health
turn 13 half damage is done with ice beam, Dragonite isn't at full health
turn 16 half damage is done with ice beam, Dragonite isn't at full health