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
Before that, Black was the colour that reigned supreme over generating free mana, and much of that philosophy has stuck around
4 Mutant Menace Spread Those Counters The Mutant Menace deck is designed around the commander, The Wise Mothman, a mutant who distributes Rad counters to all players when he attacks or comes into play
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
It dries faster and doesn't smudge as easily