4. Carnage Tyrant - Ixalan

Jurassic park in melting in the dark!

Why is it good?

Carnage Tyrant is arguably the best dinosaur to come out of the Ixalan block. This 7/6 monster cannot be countered or targeted by spells and abilities (hexproof), and it comes with trample. This reptile is the bane of Jeskai, UR, and weenies decks, and there are only a handful of cards that can deal with the tyrant. Boost this dinosaur with some enchantments and he is all but unstoppable.

Where is it used?

Carnage Tyrant is best used in Mono-Green Stompy decks because of their ability to ramp. Basically, you can have this dinosaur on the battlefield by turn four. But this Tyrant is so dominating that he can be plugged into any deck that has access to green mana. This includes Golgari Aggro/Golgari Midrange and Selesnya Aggro/Selesnya mid range decks.