The Queen of Hearts

When The Queen of Hearts enters the battlefield, create a number of 0/1 Subject creature tokens
with "This creature can't block" equal to the
number of times you've cast your commander.
Off with their heads! - Whenever you sacrifice a creature, add an amount of {r} equal to the
colored mana symbols in that creature's casting
cost and mill that many cards.
Morbid — {1}: Create a clue token.