Io, Source of Light

+2: Target friendly creature takes half damage from all sources until the end of your end step.
-2: Summon 3 white 1/1 Wisp creature tokens with defender. These tokens can be equipped as +1/+1 counters onto 1 other friendly creature.
-8: Gain an emblem that reads "When attacking, you may assign damage to creatures from blockers to any other attacking creature or Wisp."