Estimations show that you could build a tournament-ready deck for anywhere around $30-$350 , so its not exactly dirty cheap to participate at a high level, but theres some wiggle room
Also, the rates are locked in for all Eggs obtained during the event so even if you hatch them after it is over, the chance will remain the same as if you hatched them during the event
She is a brutal planeswalker you will almost never ultimate (unless you have multiples), never minus to return a permanent (unless you want to chain Nissas), and will almost exclusively bludgeon whoever youre playing with over and over again
Similar to the start of the mainline series games, players have three starter packs to choose from when you first boot up the game
By banishing Warrior-type monsters from the GY using Divine Sword - Phoenix Blade, it was possible to have an OTK in a future turn due to the sheer amount of monsters you can summon