The presence of basic land types also works well with cards that care about specific land types, like cards that say search your library for a Forest. Triomes are some of the most flexible tri lands Wizards has created
It's a staple in any deck that has access to green because it's damn consistent
While its symmetrical effect is typically seen as a downside compared to Doubling Season, you should instead use its presence on the field to your political advantage: Dont remove me from the game, youre getting value off of my Primal Vigor, Wait, I can cast Primal Vigor next turn and we can swing in with all those Tempt with Vengeance tokens, etc
I like the little band-aid on the lower right corner of the card -- Unglued cards do things like this, messing around with the format of the card by adding random bits and bobs around the card itself
Its a self-contained engine that really plays great with a variety of strategies, from Spirit tribal to Jeskai spell-slinger
Not only do you barely ever see him on-screen, but hes also someone who makes his presence known as soon as he makes an appearance