mtg commander aggro decks Magic: The Gathering A Guide to Aggro in

Being able to cast it at any time is important, because of the big chunk of text attached to it: When Orcish Bowmasters enters the battlefield and whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target

Not every player will get their copies of Harsh Mentor right away, so I think this guy could follow the same type of price model as cards like Stony Silence or Rest in Peace

The sorcery costs two, answers any creature or enchantment and then you'll lose life equal to its mana value

If you cant stop them from doing their best thing, let yourself get ahead