For Despia decks, Granguignol's ability to banish itself from the field or graveyard and summon a Despia monster from the Extra Deck can easily turn the tide of a match if you use the effect to summon Despian Proskenion
You'll bounce and recast cheap enchantments like Nowhere to Run, Hopeless Nightmare, and Stormchaser's Talent, getting second and third bites of the apple
2 Non-foil rares or mythic rares with the borderless, extended-art, or retro frame treatment This slot features an amazing array of collectible cards, including both borderless and retro frame fetch lands, borderless concept Eldrazi, extended-art cards, retro frame cards, and more
Not only does it have deathtouch and first strike for guaranteed victories in combat, if Master of Cruelties deals damage to an opponent, that players life total also becomes 1
Frostosaurus is an old cards, but it's remains one of the best level 6 normal monster out there.