Haldir goes very well with other cards on this list like Galadhrim Ambush
Commanders like Vito, Thorn of the Dusk Rose or Dina, Soul Steeper have lifegain as a built-in wincon
Games are played 1v1 in best of two matches (one match where player A goes first and another match where player B goes first), but the players who submitted the decks do not actually pilot the decks, instead, the games are played automatically under the assumption that both players have perfect information and will only make decisions that will lead to a win (or a tie/draw in the case where a win is not possible)
Sakazuki, Alternate Art Leader, OP-05 41 ($130) This Leader card features Sakazuki, who currently serves as the Fleet Admiral of the Marines and has also been known by a different alias entirely: Akainu
Another consideration is how well the partner commanders function with the four-color commander, as Saskias underlings do work in her deck
To make the card really valuable in a match, you should evolve Clefairy into Clefable