This ready-to-play deck is designed for players picking up the game for the first time and is a great way to learn the rules of the game
For five mana you get a decently-sized threat that also can draw you some cards
The only real times I would want to splash other non-red colours is when I didn't get enough playables in green and needed to make up numbers
While is pretty steep for a 5/3 creature, when it enters, its first chapter destroys target creature a foe controls, its second chapter is the your foe loses the game one, which is obviously awesome, and the third chapter draws you two cards and forces all players to lose two life
On the new-card side, Shard of the Nightbringer is the one people want, an 8/8 flyer that drains half a players life when it lands, with Biotransference and Their Name Is Death rounding out the flavor-meets-function picks
Control / Own When the Magic rules refer to the controller of a card or other object, it means what you would expect: the player who currently has that object on their side of the battlefield, who is responsible for deciding how and when to use it