I think this is a pretty compelling card, although given it is two-cost players might still prefer the one-cost Develop Your Brain
One easy combo includes Ashnods Altar and Training Grounds to reduce Marneus Calgars ability to four generic mana, making two tokens, drawing a card, and then sacrificing the tokens to Ashnods Altar
Crashing Footfalls, Elementals, and Bring to Light Scapeshift all have few turn one plays, so they can stand to fetch a Triome on turn one and start setting up their mana
Trynn, Champion of Freedom and Silvar, Devourer of the Free offer a viable alternative option for your humans, and they may prove more popular and dynamic thanks to the partner mechanic
The main weakness of the archetype, aside from the relatively small number of players iterating on it, is the manabase