On one hand, you can make an Orc army thats pretty massive, able to do your defensive bidding while you attack with just about anything else, but theres also a light reanimation theme since Sauron can bring creatures back
Simic decks, and blue decks in general, can struggle with resolved permanents
I feel Karador strikes the best balance between the utility and cost of reanimation in this space, as Kethis pushes you heavily toward a legendary theme, and Nethrois ability both costs a lot and truly thrives when you can bring back a zillion cheap creatures
After all, its often going to be able to deal three or more damage
A good control list will have dedicated parts of the deck tailored to efficiently deal with creatures thus allowing you to reserve your counterspells for things that you need them against such as Armageddon, planeswalkers, Mind Twist and so forth
For just 1 mana, it provides steady card advantage through Clue tokens and doubles as an artifact enabler in affinity-style decks