This principle also explains why Marowak ex hasnt been enough for Fighting to see substantial competitive results: its Bonemerang averages 80 damage, which is pretty underwhelming compared to the consistent Pikachu exs and explosive and zero-retreat Starmie exs 90
For example, if you have three artifacts on the battlefield and you cast a spell with Affinity for Artifacts, each of those three artifacts will contribute to reducing the spell's mana cost
Whether you just want to slot this as a value piece in case an opponent is trying to run away with the game by being a little too greedy with their card draw, or you want to make this part of your main strategy with commanders like Sheoldred, the Apocalypse or Nekusar, the Mindrazer , Orcish Bowmasters is going to shoot a lot of damage around the able
Countermagic isn't great against creature decks, especially ones that don't hit creatures
Note: The S75 card was known as the 'Hidden Holo'