Challenger decks are a great way of jumping into Magic: the Gathering - they are a Standard legal and playable deck right out of the box, built by some of the best designers the R&D team at Wizards has to offer. Any of these can potentially clean house at your local FNM.
...when that is a thing again.
CAVALCADE CHARGE: is fast and aggressive. Rush in take over the board with your creatures then power them up until they’re unstoppable. Fire out token creatures with Chandra Acolyte of Flame and ramp up damage with Cavalcade of Calamity
FINAL ADVENTURE: Send your creatures on profitable adventures then bring them home to deliver the final blow. The Final Adventure Challenger Deck has all the tools you need to control the board. Send Murderous Rider on an adventure to destroy a creature and then use Lucky Clover to copy the effect
FLASH OF FEROCITY: is unpredictable. Untap draw and pass the turn—then thwart your opponent’s every move with powerful counterspells and flash in your army of creatures at instant speed. Counter a target spell with Frilled Mystic to power up Brineborn Cutthroat
ALLIED FIRES: Build your personal army of planeswalkers then turn them into mighty dragons to finish the fight The Allied Fires Challenger Deck has all the tools you need to crush opponents. THERES A LOT OF PLANESWALKERS IN THIS DECK!!! Create flying dragon tokens with Sarkhan the Masterless and use Kenrith the Returned King to give them all trample and haste