The "2/0" in the top of the corner means that it costs two to cast and zero to activate
They're amazing in the deck but if your playgroup hates it then swap them out for something else, like Howlpack Resurgence, Master of the Wild Hunt, Worldly Tutor, and Finale of Devastation
These modes are less daunting than drafting, as they allow players to bring in their decks rather than create them as part of the event
Zara, Renegade Recruiter lets you steal creatures right from your opponents' hands, which gives you a chance to swipe powerful ETB triggers off creatures like Etali, Primal Conqueror that other threaten effects miss
(You may tap a Vampire you control in addition to any other costs as you cast this spell.) Target opponent loses half their life, rounded up
It spreads rad counters to all players and once they start milling cards due to the radiation, you make some 2/2 mutant zombies