In order to read signals, its extremely important to note the cards that do or dont wheel such that you can figure out what other players at the table are doing
Several of Ash's best cards are different variations of the same promo, distributed during the Sun & Moon era
Thinking about some of the most played artifacts, a lot of them cost two mana like Heart of Kiran, Sorcerous Spyglass, or Treasure Map
You can also find the lists for my paper decks over on Archidekt if you want to dig into how I put together my own decks and brews
Yeah the reduction isn't applied for every creatures on board, like Blasphemous Act, but it can reduce down to instead of , saving the extra Black pip, and can be hard casted for a reasonable five mana
When it comes into play, all your creatures gain +X/+X for the turn, with X equalling the number of creatures you control