d hero plasma and dogma

since plasma can only be speacial summoned could you summon him on your opponents turn and could dogma to

Unless a monster's effect states it can be used on either player's turn or if it responds to a specific situation (i.e., a spell card being activated for Horus LV8), the assumption is always that you can only use it on your own turn.

Plasma and Dogma do not state they can be summoned on the opponent's turn, therefore they can only be summoned on your turn, during your Main Phases.