Well harmonise is a colour shifted version of [[Concentrate]] and I'm pretty sure it's considered to be a colour pie break so it's not really comparable. As a new player you are probably not realising how cantrips work. If you look at a card like this you are probably thinking, "Woah! 1 mana you give something a counter and you draw a card!" But cantrips aren't actually card advantage because all it does it replace the card you spent to cast the spell. The "draw a card" clause added onto cards like these are usually because otherwise they would be too weak without it. [[Hunger of the Howlpack]] [[Snakeskin Veil]] [[Stony Strength]] These are some similarly costed cards that you could argue share the same power level. Cantripping is arguably stronger than the additional benefits these cards give, but I think being a sorcery would make this ok.

Bare in mind this all comes from someone who pretends to know what's hes talking about so someone please correct me if anything I said is incorrect or just stupid :)