If your Pokemon has 40 total HP damage (4 damage counters), that becomes much less of a problem as it evolves and its total HP increases
In most cases, Barbed Servitor will act as a four mana Phyrexian Arena that also deals one damage to your opponent each turn: a solid card, most would agree
Read the grading guide Perfect-fit sleeve on pull, rigid top loader or magnetic case for raw
Its ETB effect makes it a little less of a loss when you have to recast this Rakdos commander since you know youll be getting some more cards, and its activated ability can do a lot of work if you include some high-cost artifacts like Chromatic Orrery that will both help get Imskir out, and also be able to do a lot of damage
Now, look at the Unlimited Blastoise card, and scan the bottom of the gold border you can see a shadow in the space between Blastoise and where it says "Shellfish Pokemon"