Regardless, the foiled cards are still clearly different
If, for some reason, the creature doesn't have the squad ability when it's on the battlefield, the ability won't trigger, even if you've paid the squad cost one or more times
However, you may have to use Artorigus in situations where the opponent is using a lot of different Spells and Traps
You can pay one black mana and sacrifice another creature to have a player mill three cards, which is cool, but you can also pay one life to add one colorless mana which can only be used to cast spells from your graveyard
Four colorless, one black and one green, and six exiled cards from your graveyard lets this multi-headed monster escape back onto the battlefield if its killed, this time with 12 1/1 counters