Won 2. Against B/W aggro/control (Jake).
Walk the plank saved my ass dealing with powerful creatures.

Why build a Burn Deck?
A Burn Deck is a deck that seeks to reduce an opponent's life total from 20 to 0 as fast as possible, usually in the form of instants and sorceries and a few creatures

Mulligan ONLY if: too many lands. Needs spells to lower opponent life total.

Creatures: run a few cheap ones that can act as a fast pressure to your opponent's life total.

Spells: For the instants and sorceries, you would want as low of a mana curve as possible. You usually do not want any spells with 3 or more converted mana cost.

Lands: For Modern and Legacy, a very low land count is optimal due to the extremely low curve, where almost every spell is less than 2 mana. 20 to 21 lands are known to be the most optimal

Countering Issues
The number one issue for Burn is life gain. Life gain spells are usually are cheaper and heals more than many burn spells. Thus, life gain can literally be 2 or even 3 for 1.

https://www.youtube.com/watch?v=PUKNBDIyFSA&t=601s&index=6&list=PLbthzG-RYWNCtygzWKyJsMfnwpSP5jF5K

Dev shows off the absolute cheapest deck of the season - a mono-black burn deck that uses creatures to burn the oppoenent out! Best of all, it survives the fall rotation
View Decklist: https://decks.tcgplayer.com/magic/standard/sbmtg-dev/5-mono-black-burn--rotation-proof/1330061?utm_source=youtube&utm_medium=sponsorship&utm_term=&utm_content=&utm_campaign=strictly-better-mtg