It has, in effect, quadruple strike. Super first strike, first strike, normal damage, and then final strike. Of course, it's only double strike versus players, since it would take too many words to do more.

I might bump all of the twos on this to ones.

Not sure how relevant the last ability will be except against 0 power creatures; say it's blocked by a 1/7. It dies in combat damage, and the ability doesn't trigger (as worded, I think).

Still, all that faff aside, I really like this idea and I got a picture of E. Honda in my head straight away :)

Sadly, I didn't know who E. Honda was and had to Google him...
But yeah, I didn't want the ability to be too much, which is why I gave it one toughness. Normally, it will block/be blocked as a 6/1, but sometimes it can be 8/1 or better.

This is fun :) It's pretty similar to a 4/1 first strike, or perhaps a 3/1 double strike. But the flavour communicated by the mechanics is awesome :)

Sorry, Alex. But I just don't get how it can be a 3/1. Am I doing my math incorrectly?

"3/1 double strike" was my approximation for "something which deals 4 damage in the first strike damage step and 2 damage in normal damage step". It's arguable whether 4/1 first strike or 3/1 double strike is a better approximation to that. Neither is precisely accurate, of course, but each provides a way of thinking about it that's more familiar than this card's funky new textbox :)

It's one of the things I tend to do when I see a new mechanic on Multiverse: I try to find existing ideas to compare it to and contrast it with. "This is similar to a 4/1 first strike except..." or "This is similar to a 3/1 double strike except..." are useful for judging power level, mana cost, rarity and suchlike.