Timetwister If you look through the list of mechanics in the games history, you occasionally see effects like Timetwister
This ability is usually found in white and usually only targets creatures
Theres not that many ways to generate tokens with prowess, but there ARE mechanics like Heroic or Jeskai Ascendancy which can simulate your team all having prowess very easily and keep that all-important efficiency high
Affinity can be built as cheaply as 200 dollars, which is a steal compared to other decks in the format, but there is the potential to go into the more expensive cousin deck of blue and white Affinity with Stoneforge Mystic and/or Esper Sentinel or to pick up a few Urza, Lord High Artificers
Team her up with legends like Anje, Maid of Dishonor or Vito, Thorn of the Dusk Rose, and suddenly your reanimated vampires refuse to leave the party