While you cant counter creature spells, you can counter powerful enchantment or artifact spells like The Great Henge or Phyrexian Altar or any instant or sorcery spells that are going to disadvantage you
Animadorned Archosaur X LIGHT Level 1 [ Dinosaur / Effect ] ATK 0 DEF 0 If this card is Normal or Special Summoned: You can destroy 1 Dinosaur monster in your hand or face-up field, except "Animadorned Archosaur", then add 1 Reptile, Sea Serpent, or Winged Beast monster with the same original Level as that destroyed monster, OR 1 "Evolution Pill" Spell, from your Deck to your hand
This is an amazing way of boosting Metal Burn when you first Evolve a Charmeleon into this titan of the Pokemon world
Slimefoot, the Stowaway Could it really have been anyone else
Very often later in a format, once people have figured out how to combat the dynamics of aggressive decks, the card advantage of blue tends to dominate