That works very well with said vigilance as you can swing and keep it untapped and then use it on another attacker that turn or to recur a chump blocker, a dying Commander, or a key dork with a nice enters-the-battlefield trigger
They specialize in sports cards but handle collectibles of all kinds
If you have a Saga thats particularly powerful, and you dont want it to go away - for example, Wilds of Eldraines Three Blind Mice , you can keep it hovering between that second and third chapter, to keep making tokens of powerful creatures
When it comes to which Praetor is the best, the most powerful in terms of capabilities and strength lore-wise is obviously Elesh Norn, Grand Cenobite
There are all sorts of combat tricks, board wipes, and other powerful creatures to stop your personal Dinosaur army from winning the game