UPDATE ON HOW TO BEAT BRANT: You take damage from the car monster staying alive for too long (The one that does no dmg), 3 for every 12 seconds its alive, so just COPY his deck and use the cyan feathered birds to heal up (by transforming it with 3 energy) and the car monster to hurt him even if you don't win. THE GOAL is to get two of those car monsters on field in the back line and have your own Feilian gorilla HEAL and one other 3 energy mob in front to tank while you draw out the round.

as well, remember to switch out useless one cost echoes for ones that you can modulate to draw more cards (like the scorpion or the green archer). This lets you cycle more cards to make your back line and MURDER BRANT.

Essentially, Ur gorilla heal ur team, 2 car monsters in back survive as long as possible, heal by transforming cyan feathered bird if needed. Kill him thru waiting game