Hitting someone before they can hit you is a key to winning any fight
Be sure to have an extra 2 mana to pay to immediately sacrifice Engineered Explosives to destroy those permanents
Chandra, Flames Fury The problem with Planeswalker Deck Chandras (and PD planeswalkers in general) is how vanilla they are: Small amounts of damage get locked behind high mana costs
leave any of them On if you'd like MTGA to order/assign them automatically or leave them Off (or, alternatively, enter Full Control) if you want to do the heavy-lifting and make sure everything happens exactly as you want
To sell on Troll and Toad, simply use their search bar to find the cards you want to sell, add them to your cart, checkout, and then ship your cards to them
She is a draw engine (on death trigger of creatures we control), at +1 she becomes a Zombie Token creator, at -4 she forces each player to sacrifice two creatures of his/her choice and her ultimate at -9 is a mass removal: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest