Historically Speaking - A Brief History of Countering Abilities - EDHREC
Green slime, can this card counter anything other than a artifact or Enchantment? : r/magicTCG
New Magic Cards on X: "Voidslime |GUU| Instant. Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.). https://t.co/Mz8k50NBy0 #MTG #MagicTheGathering https://t.co/ASWYNNqsNq" / X