Feeding Grounds - Oversized Planechase Card (OHOP) from Planechase Planes, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Matt Stewart
• Card Text:
  Red spells cost 1 less to cast.
  Green spells cost 1 less to cast.
  Whenever you roll Chaos, put X +1/+1 counters on target creature, where X is that creature's converted mana cost.