Hes really good at holding equipment such as Sword of Hearth and Home or Umezawas Jitte to get extra triggers when he deals damage, but you can also use him to tutor up Skullclamp in your tokens deck and then immediately equip it to him to draw four cards when he dies
So abilities triggered by an opponent's actions, such as ward, also trigger an extra time
Otherwise, its just a boring 1/2 flier
then, once we have some "draw-two" creatures on the battlefield, we can cast it during our turn (taking advantage of the fact that we get to draw one card during our draw step) to trigger all of our payoffs
That only leaves us with three possible commanders, but EDHREC reflects how lots of folks brew otter decks with other commanders
Once you do, however, don't worry about the incremental math anymore