This reminds me a lot of Order of the Stars. I would generally not put an 'infinite blocker' into a set at common. If a deck get a lot of copies this in limited, and it can if it were a common, you can make decks that are essentially immune to ground assaults.

The wording is off btw, you have written as if it were a static ability were it instead should be worded like a trigger.

> "When ~ blocks a creature, remove that creature from combat."

Also, while this isn't the current convention by WotC, I would heavily consider some sort of a reminder text, especially if the concept of removing creatures from combat is only to appear in this card in this environment. Something in the vein of Reconnaissance would make sense, where it notes: "(It neither deals nor receives combat damage this turn.)"

Additionally, I note that generally these effects tend to untap the said creature as well as removing it from combat, so it can still act as a blocker against your potential 'counterattacks' on the following turn.