Spiders-Man, Heroic Horde can come down early for just 2 mana and generate tokens and life if you cast it with web-slinging
I think that the most powerful mill pieces are the ones that require minimal extra work from the mill player, and Mindcrank is a prime example
Torens, Fist of the Angels does two things well - he creates creature tokens and he puts +1/+1 counters on creatures
Oswald has been a heavily requested character since Lorcanas debut, as he served as the mascot of Disney before Mickey Mouse
Picking up another Engineered Explosives stand-in will help there, and Blast Zone contributes to Amulet Titans ability to find answers to absolutely every problem given enough time and mana
Pillow fort decks operate in a unique design space between group hug and stax, making them one of the more challenging decks to pin down