While it's true that this opens you up to potential blowouts when they wipe the yard with cards like Bojuka Bog or Tormod's Crypt, remember that we're going to be drawing extra cards, too, and we'll be putting cards into the graveyard on most turns, meaning we can recover from a Bog (or Draugr Necromancer) fairly quickly
Ability-wise, I wanted to highlight two things here: Taishen doesnt necessarily always want to fight, but when he does, he kicks butt
Now transformed, you get to take a peek into your opponents hand and force them to discard a card
Lotus Field - Not sure, I have had very few reps against it
Mickey Mouse, Brave Little Tailor is a character card with five Strength and Willpower, plus the Evasive keyword to limit what other characters can challenge it
Giving all your dragons indestructible means you can swing and block without fear, and the bonus of stacking +1/+1 counters every upkeep quickly snowballs, all on top of a potential alternate win condition