In fact, Primeval Titan has been the face behind some of the most degenerate decks in Modern, starting with the Cloudpost deck that was prevalent in the initial days of the format, to the Red-Green Valakut deck, and then the Amulet Titan deck both in its degenerate form with Summer Bloom, and the more toned down version we see today with Dryad of the Ilysian Grove and Urzas Saga
It has a great balance between complexity, power, and fun factor
This Simic legend may have been swept under the rug from the Modern Horizons III Commander decks, but dust it off and try it with these brand new Avatar cards
It provides interaction and card advantage all in one, which is a highly desirable combination, and its included in a three-drop that has reasonable stats by itself
If your deck benefits from life gain but doesn't need it then any card in the cube with any life gain potential that you want in your deck has surprisingly higher value than you might think