Given the wording, I assume the damage comes from the equipment and not the equipped creature ? (it's just carrying the rocket?). Reuseable 3 damage, especially from a colourless source is quite powerful. Maybe drop to 2?. Also, is it supposed to represent the launcher or one of the rockets?. Shrapnel Launcher could be this and Shrapnel Rocket a one use version ?????

Hmm, I'll work on the wording, but basically it was suppose to be a homage to Shrapnel Blast. And Shrapnel Launcher does sound better, thanks.

Here is the new and improved and hopefully more balanced Shrapnel Launcher (was Shrapnel Rocket).

Nice: it casts Shrapnel Blast!

Looks really good, could even drop the cost to and still be reasonable given both the not untapping & saccing an artifact.

You don't think so? 4 is good with me, so long as no one finds it unreasonable.

Given that Shrapnel Blast only costs , that this is an equipment with limitations and that it basically costs and tapping a creature to use it, is fine.