In stead of rolling for a random totem, your hero power could decide the randomness beforehand, then show you what you would get. Like so:
Friendly view
Enemy view
Enemy view would be same as before, so they will not know you did not take spell power for example even though you could have.
Because you can not roll a totem that is already on the board, the hero power would have to "re-roll" itself during your turn if you summon a basic totem in another way.
