Any time you transform into Dorics back side, Doric, Owlbear Avenger, she gives your other legendary creatures +2/+2 and trample for the turn
It can direct damage at other battles and potentially takes chump blockers away with its ping effect, which allows you to go off with it if built around
In response, the price of anti-Treasure tech like Viridian Revel tripled in price
Whether youre getting a big planeswalker like Liliana, Dreadhorde General or a big threat like Apex Devastator, its up to you, and you can even choose an opponent thatll give you what you want in some scenarios
To break it down by ability type: Trample Rancor gives a creature +2/+0, trample, and returns to its owners hand when the creature dies, all for a single green mana