its been since forever almost , when you summon a phantasm and you have might , his damage scale correctly, but if he take it he don’t benefit from the effect.
this could be a problem where he effectively soak up the might stak, maybe preventing some other player to benefit ( see for example guardian virtue 5 limit) but in the end his damage doesn’t change… other boon do not give problem… surely some kind of bug since phantasm power is based on ours, but anyway should be able to be affected from might, or remove the possibility to be affected at all, otherwise he just eat the stack without effect.