VS Four-Color Midrange Out: In: There are some matchups, like Four-Color Midrange, Azorius Control, or Dimir Control, that have plenty of removal spells to keep your engines in check
The flip side, Harnfel, Horn of Bounty, is also a good source of extra cards, giving you two good options of how to cast this
It scales steeply once you start getting that high, and the struggle to compete for a slot becomes much more stringent
Cryptbreaker is a great thing to cast in the early turns when black is forced to be more reactive
Fell Though Fell is not the shortest card name, if you don't count the frightening flavor text, you get a card with a terrifying three words of text